---
product_id: 138201529
title: "CX 300S In Ear Headphone with One-Button Smart Remote - Black"
brand: "sennheiser"
price: "S$97"
currency: SGD
in_stock: true
reviews_count: 10
category: "Sennheiser"
url: https://www.desertcart.sg/products/138201529-cx-300s-in-ear-headphone-with-one-button-smart-remote
store_origin: SG
region: Singapore
---

# Precision German-engineered sound clarity In-ear noise isolation with 4 ear tip sizes One-button smart remote control CX 300S In Ear Headphone with One-Button Smart Remote - Black

**Brand:** sennheiser
**Price:** S$97
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your sound game — because average earbuds just won’t cut it.

## Quick Answers

- **What is this?** CX 300S In Ear Headphone with One-Button Smart Remote - Black by sennheiser
- **How much does it cost?** S$97 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/138201529-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:** Choose from four ear tip sizes (XS, S, M, L) for a secure, personalized fit that blocks out distractions.
- • **Durable & Stylish Build:** Reinforced cable and sleek metal casing combine durability with a premium look that stands out in any setting.
- • **Plug & Play Compatibility:** Universal 3.5mm jack ensures instant connection with all your devices—no adapters, no hassle.
- • **Immersive Audio Experience:** Feel every beat with Sennheiser’s signature transducer technology delivering crystal-clear highs and deep bass.
- • **Seamless Control On-the-Go:** One-button inline smart remote lets you effortlessly manage music and calls without missing a beat.

## Overview

The Sennheiser CX 300S In-Ear Headphones deliver premium audio clarity and enhanced bass through precision German engineering. Featuring a one-button smart remote for effortless music and call control, these wired earbuds come with four sizes of ear tips for a perfect, noise-isolating fit. Built with a reinforced cable and metal casing, they offer durability and style for professionals who demand both performance and comfort in their daily audio experience.

## 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: 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.
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.

## Features

- 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 ear
- Precision german engineering ensures excellent audio clarity, so you will hear every detail of your music.
- 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.
- Connectivity technology: Wired
- Connector type: 3.5 millimeter Jack

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Q6NW778 |
| Age Range (Description) | Adult |
| Audio Driver Type | Dynamic Driver |
| Batteries | 1 Lithium Ion batteries required. |
| Best Sellers Rank | #8,162 in Electronics ( See Top 100 in Electronics ) #667 in Earbud & In-Ear Headphones |
| Cable Feature | Retractable |
| Carrying Case Color | Black |
| Carrying Case Weight | 0.1 Ounces |
| Compatible Devices | Devices with a 3.5mm audio jack or compatible adapter |
| 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 (2,956) |
| Date First Available | February 1, 2019 |
| Earpiece Shape | Rounded |
| Global Trade Identification Number | 00615104327801 |
| Hardware Interface | 3.5mm Audio |
| Headphones Jack | 3.5 mm Jack |
| Included Components | [Cable, Ear Adapter Sets (XS/S/M/L)] |
| Input Device Interface | Audio jack |
| Item Weight | 0.38 ounces |
| Item model number | CX 300S Black |
| Language | English, English, English, English, English |
| Manufacturer | Sennheiser |
| Material | Plastic, Silicone |
| Model Name | CX 300S |
| Noise Control | Sound Isolation |
| Number of Items | 1 |
| Product Dimensions | 0.5 x 0.5 x 0.5 inches |
| Recommended Uses For Product | Music, Travel, Calling |
| Series Number | 300 |
| Special Feature | Integrated Remote Control, Microphone Included, Noise Isolation |
| Specific Uses For Product | Personal |
| Style | In earphone |
| Supports Bluetooth Technology | No |
| UPC | 615104327801 707443717297 707443717327 |
| Units | 1.0 Count |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Sennheiser
- **Color:** Black
- **Ear Placement:** In Ear
- **Form Factor:** In Ear
- **Impedance:** 18 Ohms

## Images

![CX 300S In Ear Headphone with One-Button Smart Remote - Black - Image 1](https://m.media-amazon.com/images/I/51Xm1Azh4qL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does it have a microphone and how good is it?**
A: Works well on my phone and PC for taking calls at least.

**Q: One customer claims it has volume control. Unless I'm missing something, it does not have remote volume control.**
A: It does not have volume control per se, but it can be configured.  There are +/- buttons on the part of the cord where the mike is.  The default on an iphone is those buttons skip the song forward and back.  In settings/control center, you can redefine these buttons to use as volume control.  I suspect that android operating systems have something similar.

**Q: Do these have same length left and right cables**
A: Yes. The cables are the same size.

**Q: Can I get an answer on exactly how long the cord is?**
A: 1.2 meters that's from sennheisers website

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best earbuds I've ever owned...so far.
*by M***L 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.

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐ 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 - Black
- JXMOX USB Type C to 3.5mm Female Headphone Jack Adapter, USB C to Aux Audio Dongle Cable Cord Compatible with iPhone 16 Pro Max 15 Pro Max, Samsung Galaxy S24 S23 S22 Ultra, Pixel, iPad Pro, MacBook
- 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 Singapore*
*Store origin: SG*
*Last updated: 2026-03-04*