Can this connect to speaker output for rear speakers?

The input is for a line level out from a sound source BEFORE an amplifier. IF you are looking for something to use on the speaker side of an amplifier this WILL NOT WORK.

I tried using this for a bose bass 500 subwoofer which has a 3.5mm audio plug at each end, but it didn't work. bose may use a special signal. ideas?

This is designed for a line out from the source to the amp. It uses RCA jacks. If you are using between amp and speakers, that is an amplified signal and most likely overdriving this unit. Just my thoughts. Hope this helps.

Is it possible to get replacement antennas for the RT5066? Mine are missing.

I am not sure but I don't see why not. You can use other antenna that fits the thread.

Can you buy an extra receiver? I need 1 transmitter and 2 receivers.

The product we don't sell separately comes in a complete set.

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1Mii 2.4Ghz Wireless Audio Transmitter Receiver Set (1 TX + 1 RX) for TV

Product ID: 398052450

Details

Audio Output Mode
Stereo
Brand
1Mii
Color
black
Compatible Devices
Home Stereo
Connectivity Technology
2.4GHz
Connector Type
RCA

⚡20ms ultra-low audio latency

📡320FT ultra-long wireless range

🔊HiFi stereo sound quality

€ 140.02

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Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Cut the cords, not the vibe — wireless audio that keeps you connected and ahead of the curve!

PLUG PLAY SIMPLICITY - Instant pairing with RCA and 3.5mm AUX inputs—no tech headaches, just pure wireless audio bliss.
UNIVERSAL COMPATIBILITY - Connect effortlessly to any powered speaker, home stereo, or amplifier—upgrade your sound system without replacing it.
NEAR ZERO DELAY AUDIO SYNC - Experience crystal-clear sound with less than 20ms latency—perfect for TV, gaming, and live music setups.
SEAMLESS 320 FT WIRELESS FREEDOM - Cut the cords and stream your audio anywhere in your home or backyard without signal dropouts.
ROBUST BUILD FOR EVERY ENVIRONMENT - Metal casing and strong anti-interference tech ensure reliable performance indoors and outdoors, rain or shine.

The 1Mii 2.4GHz Wireless Audio Transmitter Receiver Set delivers high-fidelity stereo sound with ultra-low 20ms latency and an impressive 320-foot wireless range. Designed for seamless plug-and-play use with RCA and 3.5mm AUX inputs, it connects your TV, stereo, or powered speakers wirelessly, eliminating cable clutter. Built with durable metal housing and advanced interference resistance, it ensures stable, crystal-clear audio indoors and outdoors, making it the perfect upgrade for modern audio setups.

Specifications

ASIN	B09MCGQ8S2
Audio Output Mode	Stereo
Audio Output Type	Speakers
Best Sellers Rank	#14,783 in Electronics ( See Top 100 in Electronics ) #85 in Wireless Audio Receivers & Adapters
Brand	1Mii
Built-In Media	1Mii RT5066 Wireless Audio Transmitter+ Receiver, Antenna 2, DC 5V Power Cable+Power Adapter 2, RCA Audio Cable * 2, RCA to 3.5 Male Audio Cable * 2
Color	black
Compatible Devices	Home Stereo, Powered Speaker, Television
Connectivity Technology	2.4GHz, Wireless
Connector Type	RCA
Control Method	Push Button
Controller Type	Push Button
Customer Reviews	4.2 4.2 out of 5 stars (659)
Format	WAV
Item Dimensions D x W x H	2.3"D x 3.8"W x 0.94"H
Manufacturer	1Mii
Mfr Part Number	RT5066R1
Model Number	RT5066
Number of Channels	2
Number of Items	1
Other Special Features of the Product	Audio Transmitter and Receiver w/ RCA Input& Output, HiFi Stereo Sound, Long Wireless Range 320ft (100m), Plug and Play, Wireless Powered Speaker Adapter 2.4Ghz Low Latency
Output Wattage	5 watts
Surround Sound Channel Configuration	2
Unit Count	72 Count
Warranty Description	1 year manufacturer
Wattage	5 watts
Wireless Technology	2.4Ghz

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TrustScore 4.5 | 7,300+ reviews

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€ 140.02

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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