---
product_id: 675977990
title: "Audikast 3 – Bluetooth 5.3 Transmitter for TV Audio via Optical & AUX Outputs Only, aptX Adaptive, Dual Headphone Connection, 100ft Range – Not for HDMI–Only TVs"
brand: "avantree"
price: "€ 108.97"
currency: EUR
in_stock: true
reviews_count: 8
category: "Avantree"
url: https://www.desertcart.com.cy/products/675977990-audikast-3-bluetooth-5-3-transmitter-for-tv-audio-via
store_origin: CY
region: Cyprus
---

# 100ft wireless range aptX Adaptive low latency Dual headphone connection Audikast 3 – Bluetooth 5.3 Transmitter for TV Audio via Optical & AUX Outputs Only, aptX Adaptive, Dual Headphone Connection, 100ft Range – Not for HDMI–Only TVs

**Brand:** avantree
**Price:** € 108.97
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your TV audio game—wireless freedom, shared moments, zero compromise!

## Quick Answers

- **What is this?** Audikast 3 – Bluetooth 5.3 Transmitter for TV Audio via Optical & AUX Outputs Only, aptX Adaptive, Dual Headphone Connection, 100ft Range – Not for HDMI–Only TVs by avantree
- **How much does it cost?** € 108.97 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/675977990-audikast-3-bluetooth-5-3-transmitter-for-tv-audio-via)

## Best For

- avantree enthusiasts

## Why This Product

- Trusted avantree brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Extended 100ft Range:** Move freely around your home without losing connection or audio quality.
- • **Plug & Play Simplicity:** Effortless setup with optical or AUX output—no HDMI hassles, just pure audio freedom.
- • **Qualcomm-Powered Stability:** Advanced chipset ensures rock-solid connections and enhanced battery life for your devices.
- • **Seamless Dual Audio Sharing:** Connect two Bluetooth headphones simultaneously and never miss a moment together.
- • **Ultra-Low Latency Streaming:** Experience perfectly synced TV audio with aptX Adaptive support for crystal-clear sound.

## Overview

The Avantree Audikast 3 is a Bluetooth 5.3 transmitter designed for TVs with optical or AUX audio outputs. It supports aptX Adaptive for low latency, enabling synchronized audio with compatible headphones. With a 100ft wireless range and dual headphone connectivity, it lets two users enjoy TV audio simultaneously. Powered by Qualcomm’s advanced chipset, it delivers stable connections and improved device battery life. Firmware updates keep it future-ready, making it the perfect solution for TVs lacking built-in Bluetooth.

## Description

desertcart.com: Avantree Audikast 3 – Bluetooth 5.3 Transmitter for TV Audio via Optical & AUX Outputs Only, aptX Adaptive, Dual Headphone Connection, 100ft Range – Not for HDMI–Only TVs : Electronics

Review: Great Range, pairs easily with 2 sets of earbuds. - Avantree Audikast Plus Bluetooth 5.0 Transmitter for TV with Volume Control, aptX Low Latency Audio Adapter for 2 Headphones (Optical, AUX, RCA, USB), Class 1 Long Range 100ft - No Receiver Mode ASIN# B07TLHRPDP I spend a few hours each night watching TV with my Mom, her time is getting short. She is also hearing impaired. I have a Trond BT transmitter that I've been using because on the great room TV we can pair with 2 sets of earbuds at the same time. The Trond(s) work great, but the reason I purchased this Avantree, because while using the Trond (I have 3, I tried all of them) on the TV or Roku device when paired with 2 sets of earbuds, the sound on one or both pairs would stutter and cut out repeatedly after about an hour of usage. So I figured the problem was the Tronds, turns out I was wrong So when hooked up the Avantree to the CATV, Roku, DVD - the sound would begin to stutter and cut out after about an hour of usage as well. I am stating this in case anyone out there has similar issues that this might help and save you a lot of frustration. And here was the problem. My Mom listens to TV on her earbuds ALL DAY long, the MPOW’s (currently sold on desertcart as MSTHOO and Ruebitrue, best all around earbuds you can get for the money) that I had purchased for her can hold a charge for a good 6 hours or more, and she uses them for around than 14 hours total, mostly for the news during the day. So both of her sets of earbuds go through an entire charge cycle every day. I purchased these most recent ones for her in December 2021 for Xmas. The problems started around early to middle of May 2022. After ruling out everything else and a whole lot of angry frustration, I had come to realize that the batteries on the earbuds had weakened and would start to fail at about 60 to 90 minutes of usage. So I am guessing they’re good for about 100+ charge cycles or so, they still work fine on their own, but when 2 are paired on the same transmitter they begin to have issues. Even if my pair of earbuds were almost new, if one pair of earbuds out of the two was weak, it would cause both pairs to stutter. (unless the receivers on the earbuds are burning out or weakening, still a possibility) Now back to the Avantree. The range was great, I could walk all the way out to my fence outside my home which is about 50 - 60 feet away, strong and clear signal, even with 2 sets of earbuds on at the same time. (I initially thought the range in the details was exaggerated, it was not, but see above for that issue) It was very easy to pair 2 sets of earbuds, just push a button, and the second set would connect. And it has a volume control, very handy on the Roku because the volume on that is weaker than on the CATV box. (The Roku is also on a DONGJIAN audio extractor, the main TV line out is awful, I had to use the line out/Roku remote with a BT transmitter, latency was very bad, and the extractor completely eliminates all latency on this device, COMPLETELY) Unfortunately I ended sending the Avantree back, not realizing the problem was the earbuds battery, weakened by high usage. If I realized that the earbuds were the problem, I would’ve not only kept this one for the CATV, I would’ve purchased another separate one to be used for the Roku so I wouldn’t have to switch them back and forth between the 2 devices. I hope the folks over at Avantree are reading this, my humblest of apologies, this whole Bluetooth tech is brand new to me, I didn’t start using any Bluetooth devices until September of 2020. I give this Avantree 5 stars all around, and I will be getting another one quite soon. I highly recommend, especially at the price point, it is HIGHLY competitive with other transmitters of this type. I hope this helped.
Review: I Gave It Some Patience. And It Worked Great With My Bose Headphones - This unit will work with a set of Bose Bluetooth headphones. They work perfectly, in fact! I originally bought this unit very concerned that it would not work with my mother’s Bose Quiet Comfort 35 II. Unfortunately, she doesn’t have Bluetooth on her television. The headphones worked great on a fire cube, but I decided to go back to cable. I wasn’t sure if this would also work with my TIVO box, but because the television is wall-mounted, I thought it would be easier, as it was obvious, I would have an easier time plugging up the wires. I noticed that my TIVO box has two USB out ports, so I plugged the included USB power cord right into one of these, and the unit powered up perfectly. I then plugged up the optical cable into the back of the TIVO box as well. Because I was using an HDMI cable for both picture and sound, I didn’t need to use the TIVO optical port, it was just not being used. It was a perfect opportunity to use the included optical cable, that came with the unit. I was so pleased because all this meant that now I did not have to go behind the TV at all. The first thing that I did was to hold down the power button on my mother’s Bose headphones, in order to clear all previous pairings. I wanted to make sure there were no conflicts, besides I was only going to use these headphones with this device. Now everything was going perfectly, except for the paring of the Bose headphones. Others have complained that Bose headphones will not pear at all with this device, however, patience is the key here. I too had some difficulty and was convinced that the Bose headphones would not properly pair with the device. I was only more patient because I was used to paring the Bose headphones with my mother’s desertcart Fire Cube. It used to give me trouble when attempting to pair the Cube and the Bose headphones together. Sometimes, I would have to try several times to get them to work together. I had to wait and wait for them to finally connect. Sometimes I started over and even restarted the Cube box again to make them both work together. However, my efforts always paid off, for once they pared, they worked wonderfully. This experience taught me to be patient, and to not be too impatient when trying to pare my Bose headphones to this Avantree unit. It took a long time, and I almost gave up, when suddenly my Bose headphones informed me that a connection had been made. I was so very pleased. Now I know I can use the unit on my television as well as my TIVO BOLT. Perfect, not only that, but I can also watch TV while my 93-year-old mother continues to listen to her headphones. Because the television is connected to the TIVO BOX with an HDMI cable, the sound is being sent to both the headphones through the optical cable, and the television speakers through the HDMI cable. So, if my mom wants to watch television alone, all she has to do is turn down the volume on her television and listen quietly on her BOSE headphones with the Avantree unit. If I come into the room and want to watch Television with her, all she has to do is turn up the regular volume on her Television, so I can listen too. This was so easy to install, I was very surprised at how easy it was to get it going, all I needed was a little patience. Our house is once again quiet, for this is a great little unit. In conclusion, this unit will work with Bose Bluetooth, just be patient. This will work with TIVO, but I only mentioned TIVO in case you also have a TIVO box as I do. This is an advantage, but you don’t need a TIVO box at all to make this work, I am sure it will work perfectly on your television at home.

## Features

- [CHECK TV PORTS BEFORE PURCHASE] Works only with TVs that have optical (TOSLINK) or 3.5mm audio OUT ports. Not compatible with HDMI / ARC / eARC ports, TVs that only have HDMI, or with audio–in / headphone–in jacks.
- [EASY SETUP – PLEASE FOLLOW TV SETTINGS] Connect the transmitter to your TV’s optical or 3.5mm audio OUT port and power it via USB, then put your Bluetooth headphones into pairing mode. Make sure your TV audio output is set to “External Speakers” / “Optical” / “Headphones” in the sound menu. If you don’t hear any sound, follow the troubleshooting steps in the included Quick Start guide or our online video.
- [SET TV AUDIO FORMAT TO PCM] For optical connections, please set your TV’s digital audio output to PCM / Stereo in the sound settings. Surround formats such as Dolby Digital / DTS are not supported and will result in no audio.
- [LOW LATENCY WITH COMPATIBLE HEADPHONES] When used with headphones that support aptX Adaptive or aptX Low Latency (e.g. Avantree Aria Me, Audition 3), you’ll enjoy TV audio that is virtually in sync with the picture. With standard Bluetooth headphones, a small delay may be noticeable – this is normal for regular Bluetooth.
- [DUAL LINK] Pair your Audikast 3 with two pairs of headphones simultaneously and share your enjoyment with your loved one.
- [POWERED BY QUALCOMM] With its advanced Qualcomm chipset, the Audikast 3 delivers clearer sound, stable connections, and improved battery life for connected devices – all backed by Avantree's 20+ years of Bluetooth expertise.
- [FIRMWARE UPGRADABLE] Stay current with ongoing firmware updates. Whether it's performance improvements or future features, you can upgrade easily via our official support page.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DK8TC1WJ |
| Additional Features | 1. aptX-Adaptive Support; 2. Advanced Qualcomm Quality; 3. Boosted OPT Volumes |
| Audio Input | Optical TOSLINK, 3.5mm AUX |
| Audio Output Mode | Stereo |
| Audio Output Type | Bluetooth |
| Best Sellers Rank | #22 in MP3 Player Bluetooth Transmitters |
| Bluetooth support? | Yes |
| Brand | Avantree |
| Built-In Media | AUX 3.5mm Audio Cable, AudiKast 3 Transmitter, Optical Audio Cable, Power Cable |
| Color | Black |
| Compatibility Options | Bluetooth headphones/earbuds, TVs with optical (TOSLINK) or AUX (3.5mm) audio output ports |
| Compatible Devices | TVs equipped with Optical (TOSLINK) or AUX (3.5mm) audio output ports |
| Connectivity Technology | Bluetooth 5.3, Wireless, Optical, AUX, RCA |
| Connector Type Used on Cable | Optical TOSLINK, 3.5mm AUX |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.2 4.2 out of 5 stars (6,907) |
| Hardware Interface | Bluetooth |
| Includes Remote | No |
| Installation Type | wired |
| Item Weight | 0.16 Kilograms |
| Manufacturer | Avantree |
| Model Name | Audikast 3 |
| Number of Channels | 2 |
| Power Source | Corded Electric |
| Rechargeable Battery Included | No |
| Supported Application | TV |
| Supported Media Type | MP3, WAV, AAC |
| Supported Standards | Bluetooth 5.3, aptX-Adaptive |
| Unit Count | 1.0 Count |
| Warranty Description | 24 months (product registration to cover first 12m return shipment cost) | Extensive Support: Chat, Email, Phone, Online Clinic, Video Tutorials, FAQ and Registration - avantree.com/support |
| Wireless Compability | Bluetooth |

## Product Details

- **Brand:** Avantree
- **Connectivity Technology:** Bluetooth 5.3, Wireless, Optical, AUX, RCA
- **Item Weight:** 0.16 Kilograms
- **Power Source:** Corded Electric
- **Special Feature:** 1. aptX-Adaptive Support; 2. Advanced Qualcomm Quality; 3. Boosted OPT Volumes

## Images

![Audikast 3 – Bluetooth 5.3 Transmitter for TV Audio via Optical & AUX Outputs Only, aptX Adaptive, Dual Headphone Connection, 100ft Range – Not for HDMI–Only TVs - Image 1](https://m.media-amazon.com/images/I/61AVETdnlML.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Can Audikast 3 work with my TV?**
A: The Audikast 3 works only with TVs that have optical (TOSLINK) or 3.5mm AUX audio output ports. It does not support HDMI ARC/eARC, RCA-only, or Bluetooth-only TVs. Before purchase, please check your TV’s audio output settings to ensure compatibility.

**Q: What devices is the Audikast 3 compatible with?**
A: Works with TVs, computers, or audio systems that have optical (TOSLINK) or 3.5mm AUX output ports. Transmits to Bluetooth headphones, earbuds, or speakers. Not compatible with hearing aids, smartphones or other Bluetooth transmitters.

**Q: How do I pair my Bluetooth headphones with the Audikast 3?**
A: 1.Connect the Audikast 3 to your TV and a power source, and turn it on. 2.Put your headphones into pairing mode (not just power on). 3.Audikast 3 and headphones will auto pair. The pairing light on Audikast 3 will turn solid when pair is successful.

**Q: Why is there no sound from TV to my headphonse?**
A: 1. Check if the TV audio format is set to PCM. 2. Turn off Bluetooth on your phone and computer.

**Q: Can this product be updated in the future?**
A: Yes. Firmware updates are available via our website to keep your device up to date with the latest features and fixes.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Range, pairs easily with 2 sets of earbuds.
*by J***C on August 12, 2022*

Avantree Audikast Plus Bluetooth 5.0 Transmitter for TV with Volume Control, aptX Low Latency Audio Adapter for 2 Headphones (Optical, AUX, RCA, USB), Class 1 Long Range 100ft - No Receiver Mode ASIN# B07TLHRPDP I spend a few hours each night watching TV with my Mom, her time is getting short. She is also hearing impaired. I have a Trond BT transmitter that I've been using because on the great room TV we can pair with 2 sets of earbuds at the same time. The Trond(s) work great, but the reason I purchased this Avantree, because while using the Trond (I have 3, I tried all of them) on the TV or Roku device when paired with 2 sets of earbuds, the sound on one or both pairs would stutter and cut out repeatedly after about an hour of usage. So I figured the problem was the Tronds, turns out I was wrong So when hooked up the Avantree to the CATV, Roku, DVD - the sound would begin to stutter and cut out after about an hour of usage as well. I am stating this in case anyone out there has similar issues that this might help and save you a lot of frustration. And here was the problem. My Mom listens to TV on her earbuds ALL DAY long, the MPOW’s (currently sold on Amazon as MSTHOO and Ruebitrue, best all around earbuds you can get for the money) that I had purchased for her can hold a charge for a good 6 hours or more, and she uses them for around than 14 hours total, mostly for the news during the day. So both of her sets of earbuds go through an entire charge cycle every day. I purchased these most recent ones for her in December 2021 for Xmas. The problems started around early to middle of May 2022. After ruling out everything else and a whole lot of angry frustration, I had come to realize that the batteries on the earbuds had weakened and would start to fail at about 60 to 90 minutes of usage. So I am guessing they’re good for about 100+ charge cycles or so, they still work fine on their own, but when 2 are paired on the same transmitter they begin to have issues. Even if my pair of earbuds were almost new, if one pair of earbuds out of the two was weak, it would cause both pairs to stutter. (unless the receivers on the earbuds are burning out or weakening, still a possibility) Now back to the Avantree. The range was great, I could walk all the way out to my fence outside my home which is about 50 - 60 feet away, strong and clear signal, even with 2 sets of earbuds on at the same time. (I initially thought the range in the details was exaggerated, it was not, but see above for that issue) It was very easy to pair 2 sets of earbuds, just push a button, and the second set would connect. And it has a volume control, very handy on the Roku because the volume on that is weaker than on the CATV box. (The Roku is also on a DONGJIAN audio extractor, the main TV line out is awful, I had to use the line out/Roku remote with a BT transmitter, latency was very bad, and the extractor completely eliminates all latency on this device, COMPLETELY) Unfortunately I ended sending the Avantree back, not realizing the problem was the earbuds battery, weakened by high usage. If I realized that the earbuds were the problem, I would’ve not only kept this one for the CATV, I would’ve purchased another separate one to be used for the Roku so I wouldn’t have to switch them back and forth between the 2 devices. I hope the folks over at Avantree are reading this, my humblest of apologies, this whole Bluetooth tech is brand new to me, I didn’t start using any Bluetooth devices until September of 2020. I give this Avantree 5 stars all around, and I will be getting another one quite soon. I highly recommend, especially at the price point, it is HIGHLY competitive with other transmitters of this type. I hope this helped.

### ⭐⭐⭐⭐⭐ I Gave It Some Patience. And It Worked Great With My Bose Headphones
*by B***N on December 12, 2020*

This unit will work with a set of Bose Bluetooth headphones. They work perfectly, in fact! I originally bought this unit very concerned that it would not work with my mother’s Bose Quiet Comfort 35 II. Unfortunately, she doesn’t have Bluetooth on her television. The headphones worked great on a fire cube, but I decided to go back to cable. I wasn’t sure if this would also work with my TIVO box, but because the television is wall-mounted, I thought it would be easier, as it was obvious, I would have an easier time plugging up the wires. I noticed that my TIVO box has two USB out ports, so I plugged the included USB power cord right into one of these, and the unit powered up perfectly. I then plugged up the optical cable into the back of the TIVO box as well. Because I was using an HDMI cable for both picture and sound, I didn’t need to use the TIVO optical port, it was just not being used. It was a perfect opportunity to use the included optical cable, that came with the unit. I was so pleased because all this meant that now I did not have to go behind the TV at all. The first thing that I did was to hold down the power button on my mother’s Bose headphones, in order to clear all previous pairings. I wanted to make sure there were no conflicts, besides I was only going to use these headphones with this device. Now everything was going perfectly, except for the paring of the Bose headphones. Others have complained that Bose headphones will not pear at all with this device, however, patience is the key here. I too had some difficulty and was convinced that the Bose headphones would not properly pair with the device. I was only more patient because I was used to paring the Bose headphones with my mother’s Amazon Fire Cube. It used to give me trouble when attempting to pair the Cube and the Bose headphones together. Sometimes, I would have to try several times to get them to work together. I had to wait and wait for them to finally connect. Sometimes I started over and even restarted the Cube box again to make them both work together. However, my efforts always paid off, for once they pared, they worked wonderfully. This experience taught me to be patient, and to not be too impatient when trying to pare my Bose headphones to this Avantree unit. It took a long time, and I almost gave up, when suddenly my Bose headphones informed me that a connection had been made. I was so very pleased. Now I know I can use the unit on my television as well as my TIVO BOLT. Perfect, not only that, but I can also watch TV while my 93-year-old mother continues to listen to her headphones. Because the television is connected to the TIVO BOX with an HDMI cable, the sound is being sent to both the headphones through the optical cable, and the television speakers through the HDMI cable. So, if my mom wants to watch television alone, all she has to do is turn down the volume on her television and listen quietly on her BOSE headphones with the Avantree unit. If I come into the room and want to watch Television with her, all she has to do is turn up the regular volume on her Television, so I can listen too. This was so easy to install, I was very surprised at how easy it was to get it going, all I needed was a little patience. Our house is once again quiet, for this is a great little unit. In conclusion, this unit will work with Bose Bluetooth, just be patient. This will work with TIVO, but I only mentioned TIVO in case you also have a TIVO box as I do. This is an advantage, but you don’t need a TIVO box at all to make this work, I am sure it will work perfectly on your television at home.

### ⭐⭐⭐⭐ Great little product, but may interfere with your 2.4Ghz
*by A***. on November 13, 2025*

Item was smaller than I expected. Was very easy to set up using the intructions (e-manual). Works very well and no issues with lag. Sound quality was good (for bluetooth). Tested with a pair of Sennheiser Momentum 4 headphones. Note that sound quality will also dependent other factors like the music source , bluetooth version and codec supported by your headphones. The reason for 4 stars and not 5 is that the Bluetooth signal appears to interfere quite badly with the 2.4Ghz wifi band. My TV kept dropping its wifi connection and connection speed also suffered. This may not be an issue if your tv's wifi supports higher frequencies (e.g. 5Ghz) I placed it a bit further from the tv, but the supplied optical cable is a bit short. If you encounter similar issues, may be worth considering getting a longer optical cable to have the unit further from the tv. I also turn the device off when I'm not using it.

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-04-24*