---
product_id: 125228886
title: "CX 300S In Ear Headphone with One-Button Smart Remote - Red"
brand: "sennheiser"
price: "$U4712"
currency: UYU
in_stock: true
reviews_count: 10
category: "Sennheiser"
url: https://www.desertcart.uy/products/125228886-cx-300s-in-ear-headphone-with-one-button-smart-remote
store_origin: UY
region: Uruguay
---

# 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:** $U4712
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your audio game — don’t just listen, experience every beat!

## Quick Answers

- **What is this?** CX 300S In Ear Headphone with One-Button Smart Remote - Red by sennheiser
- **How much does it cost?** $U4712 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/125228886-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

- • **Custom Fit Comfort:** Four sizes of silicone ear adapters ensure a snug, personalized fit for all-day wear without fatigue.
- • **Durable & Stylish Build:** Robust metal casing in vibrant red combines premium durability with a bold statement look.
- • **Noise Isolation Mastery:** In-ear design blocks out distractions so you can focus, whether at work or on your commute.
- • **Immersive Sound Experience:** Engineered in Germany for crystal-clear audio and enhanced bass that makes every track feel live.
- • **Seamless Control On-the-Go:** One-button inline smart remote lets you effortlessly manage music and calls without reaching for your device.

## Overview

The Sennheiser CX 300S In-Ear Headphones deliver premium sound clarity and enhanced bass through precision German engineering. Featuring a one-button smart remote for effortless control and four sizes of ear adapters for a perfect fit, these wired earbuds provide excellent noise isolation and durable metal casing. Ideal for professionals seeking immersive audio and reliable performance 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: Sounds good. Metal casing. Seems sturdy - They sound good but are very uncomfortable for sleeping. I use ear buds to sleep to drown out the annoying snoring coming from my husband's side of the bed. I thought I would try out these Senheiser CX 300S ear buds because they were not too much more than the JBL T290 ear buds I was replacing (for the third time in 4 months making them much cheaper if they actually lasted). I paid $16.99 for each pair of the JBL's and the Senheisers were like $35 so it seemed like a good choice. They do seem durable with a metal casing (which is probably why they are uncomfortable for sleeping). They do sound a little richer than the JBL's which would have made them so much better for sleeping. I am keeping them to wear for streaming or to listen to music during the day.
Review: Best earbuds I've ever owned...so far. - After a bad outing with the Sennheiser CX 100 (they lasted 10 days before the left earbud died), I decided to try the CX 300S due to its perceived improved build quality. I've had them since April 20th, and so far, so good. The cable is thicker and the 1/8th inch plug is reinforced much more sturdily than the CX 100. These earbuds are *extremely* comfortable. You can sleep in them and you don't even notice them in your ears. Sound isolation is very good, much better than CX 100. When working out at the gym, external noise is cancelled. The bass is also much improved over the CX 100. However, I find that the mids are a touch cleaner with better soundstage on the CX 100. But overall, the CX 300S provides a more exciting listening experience, especially if you're a basshead. I'm really hoping these last. Best earbuds I've ever owned. Worth the price and the sound quality is just on another level entirely compared to the earbuds you get with phones. UPDATE: Best headphones I've yet owned. A few months in, no issues, even after being run over by a car. It doesn't feel like you're wearing them, noise cancelling is acceptable, sound quality fantastic. Only issue is the inline mic is weak at recording field sounds (it's okay for calls) and the jack comes out easy, which I'm assuming was designed this way to prolong the life of the connection at the jack point. I LOVE these. I would buy another in a second. And Sennheiser has a fan for life.

## 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 canals 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 |
| Age Range (Description) | Adult |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #11,121 in Electronics ( See Top 100 in Electronics ) #809 in Earbud & In-Ear Headphones |
| Cable Feature | Retractable |
| Compatible Devices | Cellphones, Tablets, Laptops, Desktops |
| Connectivity Technology | Wired |
| Control Method | Remote, Touch |
| Control Type | remote |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.1 4.1 out of 5 stars (2,953) |
| Date First Available | February 1, 2019 |
| Earpiece Shape | Rounded tip |
| Global Trade Identification Number | 00615104327825 |
| Hardware Interface | 3.5mm Audio |
| Headphones Jack | 3.5 mm Jack |
| Included Components | CX 100 Earphones, 4 Ear adapter Sizes (XS/S/M/L) |
| Item Weight | 0.38 ounces |
| Item model number | CX 300S Red |
| Manufacturer | Sennheiser |
| Material | Silicone |
| Model Name | CX 300S Red |
| Noise Control | Sound Isolation |
| Number of Items | 1 |
| Product Dimensions | 0.5 x 0.5 x 0.5 inches |
| Special Feature | Lightweight, Microphone Included, Noise Isolation, Tangle Free Cord |
| Specific Uses For Product | Personal |
| Style | In earphone |
| Supports Bluetooth Technology | No |
| UPC | 615104327825 |
| Units | 1.0 Count |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Sennheiser
- **Color:** 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

### ⭐⭐⭐⭐⭐ Sounds good. Metal casing. Seems sturdy
*by L***P on December 20, 2025*

They sound good but are very uncomfortable for sleeping. I use ear buds to sleep to drown out the annoying snoring coming from my husband's side of the bed. I thought I would try out these Senheiser CX 300S ear buds because they were not too much more than the JBL T290 ear buds I was replacing (for the third time in 4 months making them much cheaper if they actually lasted). I paid $16.99 for each pair of the JBL's and the Senheisers were like $35 so it seemed like a good choice. They do seem durable with a metal casing (which is probably why they are uncomfortable for sleeping). They do sound a little richer than the JBL's which would have made them so much better for sleeping. I am keeping them to wear for streaming or to listen to music during the day.

### ⭐⭐⭐⭐⭐ Best earbuds I've ever owned...so far.
*by M***S on May 7, 2022*

After a bad outing with the Sennheiser CX 100 (they lasted 10 days before the left earbud died), I decided to try the CX 300S due to its perceived improved build quality. I've had them since April 20th, and so far, so good. The cable is thicker and the 1/8th inch plug is reinforced much more sturdily than the CX 100. These earbuds are *extremely* comfortable. You can sleep in them and you don't even notice them in your ears. Sound isolation is very good, much better than CX 100. When working out at the gym, external noise is cancelled. The bass is also much improved over the CX 100. However, I find that the mids are a touch cleaner with better soundstage on the CX 100. But overall, the CX 300S provides a more exciting listening experience, especially if you're a basshead. I'm really hoping these last. Best earbuds I've ever owned. Worth the price and the sound quality is just on another level entirely compared to the earbuds you get with phones. UPDATE: Best headphones I've yet owned. A few months in, no issues, even after being run over by a car. It doesn't feel like you're wearing them, noise cancelling is acceptable, sound quality fantastic. Only issue is the inline mic is weak at recording field sounds (it's okay for calls) and the jack comes out easy, which I'm assuming was designed this way to prolong the life of the connection at the jack point. I LOVE these. I would buy another in a second. And Sennheiser has a fan for life.

### ⭐⭐⭐⭐ Great Choice for Recreational Use
*by R***H on January 2, 2020*

I previously owned Skull Candy Ink'd headphones, but the microphone broke. I've owned expensive Sennheiser open backed headphones that I love, so I thought I'd give these a try. First off, the construct is high quality. All of the tangible parts feel great and you know they took great care in designed them. The audio jack is skinny and will fit into your phone even if it has a bulky case. At the time, my skull candy earbuds were about $20, so comparing the audio between these and them, I'd say the Sennheiser sounds AT LEAST two times better. Like other Sennheiser products, the treble and base are well balanced, The sound comes in softer than cheaper earbuds and the best way to describe cheap earbuds is they BLURT music instead of it being carefully constructed. Not to talk these up too much because you are buying earbuds. I haven't heard an earbud sound nearly as good as a quality pair of headphones. These are great for recreational use: running, hiking, working out or routine housework. I saw a couple of reviews talk about noise cancellation. you DO NOT get noise cancellation with these. They give you plenty of tips to fit your ear as best as possible. If you have the right fit, its like wearing foam ear plugs and most of the ambient noise is blocked. However, it does not feel like foam earplugs and the ergonomic design fits the ear very well and is very comfortable. Overall for the price, it is a really great product, and if you're like me, you'll use them for years.

## 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 Uruguay*
*Store origin: UY*
*Last updated: 2026-02-12*