---
product_id: 267369684
title: "CX 300S In Ear Headphone with One-Button Smart Remote - Red"
brand: "sennheiser"
price: "€ 102.39"
currency: EUR
in_stock: true
reviews_count: 5
category: "Sennheiser"
url: https://www.desertcart.com.cy/products/267369684-cx-300s-in-ear-headphone-with-one-button-smart-remote
store_origin: CY
region: Cyprus
---

# Precision German audio clarity Effective ambient noise isolation One-button smart remote control CX 300S In Ear Headphone with One-Button Smart Remote - Red

**Brand:** sennheiser
**Price:** € 102.39
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your everyday sound — precision, comfort, and control in one sleek package!

## Quick Answers

- **What is this?** CX 300S In Ear Headphone with One-Button Smart Remote - Red by sennheiser
- **How much does it cost?** € 102.39 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/267369684-cx-300s-in-ear-headphone-with-one-button-smart-remote)

## Best For

- sennheiser enthusiasts

## Why This Product

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

## Key Features

- • **Tailored Comfort Fit:** Four sizes of silicone ear adapters (XS, S, M, L) ensure a personalized, secure fit for all-day wear and superior noise isolation.
- • **Immersive Noise Isolation:** In-ear design blocks out distractions so you can focus on your music or calls, wherever you are.
- • **Lightweight & Tangle-Free:** Ultra-light 0.38 oz design with a retractable, tangle-free cable keeps your setup sleek and hassle-free.
- • **Crystal-Clear Sound Precision:** Experience every note with Sennheiser’s renowned German-engineered transducers delivering pristine audio clarity.
- • **Seamless Control at Your Fingertips:** One-button inline smart remote lets you effortlessly play, pause, and take calls without missing a beat.

## Overview

The Sennheiser CX 300S In-Ear Headphones combine precision German engineering with a smart one-button remote for seamless music and call control. Featuring four sizes of silicone ear tips for a customized fit, these lightweight earphones deliver clear, detailed sound with effective ambient noise isolation. Compatible with all devices via a 3.5mm jack, they offer a tangle-free, retractable cable design perfect for professionals on the move.

## Description

Boost your sound with Sennheiser’s CX 300S earphones which offer amazingly detailed sound reproduction and enhanced bass response thanks to Sennheiser’s transducer technology. S, M, L) to choose from. A Smart remote enables you to play/pause music and take calls across all devices.

Review: I got response from sennheiser hearing that there is no such serial number in their database
Review: Tengo poco con ellos y no han pasado por la prueba del tiempo, entonces no puedo hablar de esa parte. En cuanto a audio, suenan muy claro, reproducen todos los sonidos con nitidez, le falta un poco de cuerpo/punch al bajo pero siguen reproduciendo correctamente esos sonidos. Se compartan bien en diferentes géneros, a diferencia de otros audífonos que priorizan bajos sobre otros elementos y terminan por ser "especializados" para música electrónica básica, descuidando la experiencia de escuchar otro tipo de música. En cuanto a relación calidad-precio, los compré por la marca, no tengo suficientes comparativas con audífonos de la misma gama para hablar de este factor, pero están bonitos y tienen mejor feel que otros más baratos. Los recomiendo aunque podría haber mejores opciones, sólo que no las conozco.

## Features

- Precision German engineering ensures excellent audio clarity, so you will hear every detail of your music
- Product Note : If the size of the earbud tips does not match the size of your ear cs or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ears
- One button inline smart remote makes it convenient to play and pause music and take calls without needing to fumble with your phone
- Four sizes (XS, S, M, L) of ear adapters are included so you can get an individualized fit for personal comfort
- In ear design creates a secure fit for excellent reduction of ambient noise so you can relax and focus on the music

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07N9J4BTK |
| Additional Features | Lightweight, Microphone Included, Noise Isolation, Tangle Free Cord |
| Age Range Description | Adult |
| Antenna Location | Calling |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #12,448 in Electronics ( See Top 100 in Electronics ) #721 in In-Ear Headphones |
| Brand | Sennheiser |
| Built-In Media | 4 Ear adapter Sizes (XS/S/M/L) |
| Cable Features | Retractable |
| Color | Red |
| Colour | Red |
| Compatible Devices | Cellphones, Tablets, Laptops, Desktops |
| Connectivity Technology | Wired |
| Control Method | Remote |
| Control Type | remote |
| Controller Type | remote |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.2 out of 5 stars 2,851 Reviews |
| Ear placement | In Ear |
| Earpiece Shape | Rounded Tips |
| Enclosure Material | Silicone |
| Form factor | In Ear |
| Frequency Range | 17 - 21,000 Hz |
| Global Trade Identification Number | 00615104327825 |
| Headphone Folding Features | In Ear |
| Headphone Jack | 3.5 mm Jack |
| Headphones Ear Placement | In Ear |
| Impedance | 18 Ohms |
| Is Autographed | No |
| Item Type Name | Headphone |
| Item Weight | 0.38 Ounces |
| Manufacturer | Sennheiser |
| Model Name | CX 300S Red |
| Model Number | CX 300S Red |
| Noise Control | Sound Isolation |
| Noise control | Sound Isolation |
| Number of Items | 1 |
| Sensitivity | 18 Ohm |
| Specific Uses For Product | Personal |
| Style Name | In earphone |
| Subject Character | no character |
| Theme | Audio |
| UPC | 615104327825 |
| Unit Count | 1 Count |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Sennheiser
- **Colour:** Red
- **Ear placement:** In Ear
- **Form factor:** In Ear
- **Impedance:** 18 Ohms

## Images

![CX 300S In Ear Headphone with One-Button Smart Remote - Red - Image 1](https://m.media-amazon.com/images/I/51ov0q9cRvL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐ Review
*by B***T on 30 October 2024*

I got response from sennheiser hearing that there is no such serial number in their database

### ⭐⭐⭐⭐⭐ Review
*by D***A on 30 August 2019*

Tengo poco con ellos y no han pasado por la prueba del tiempo, entonces no puedo hablar de esa parte. En cuanto a audio, suenan muy claro, reproducen todos los sonidos con nitidez, le falta un poco de cuerpo/punch al bajo pero siguen reproduciendo correctamente esos sonidos. Se compartan bien en diferentes géneros, a diferencia de otros audífonos que priorizan bajos sobre otros elementos y terminan por ser "especializados" para música electrónica básica, descuidando la experiencia de escuchar otro tipo de música. En cuanto a relación calidad-precio, los compré por la marca, no tengo suficientes comparativas con audífonos de la misma gama para hablar de este factor, pero están bonitos y tienen mejor feel que otros más baratos. Los recomiendo aunque podría haber mejores opciones, sólo que no las conozco.

### ⭐ Review
*by S***I on 27 September 2023*

the sound in the right ear goes fuzzy & static and hurts my ear as it is a piercing sound, i thought it was something i did with crossing wires or fault on my devices, but it happens on every device. after inspecting the wires i can see the wire looks bent/crimped leading up to the right ear bud. when they were packaged the wires were rolled/folded and might have been damaged in this process.

## Frequently Bought Together

- Sennheiser CX 300S In Ear Headphone with One-Button Smart Remote - Red
- OneKer USB Type C to 3.5mm Headphone Jack Adapter, (2-Pack) USB C to Aux Female Audio Dongle Cable Cord Compatible with iPhone 16/15 Pro/15 Plus/15 Pro Max,iPad Pro,MacBook, Samsung Galaxy S24 S23 S22
- Apple MFi Certified 2 Pack Lightning to 3.5 mm Headphone Jack Adapter for iPhone, iPhone Aux Adapter Converter Dongle Audio Cable Compatible with iPhone 14 13 12 11 X XS 8 7

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-02*