---
product_id: 110119754
title: "CX 300S Ear-Canal Headphones with Universal Smart Remote - Black, 508593"
brand: "sennheiser"
price: "¥7906"
currency: JPY
in_stock: true
reviews_count: 8
category: "Sennheiser"
url: https://www.desertcart.jp/products/110119754-cx-300s-ear-canal-headphones-with-universal-smart-remote-black
store_origin: JP
region: Japan
---

# Built-in mic & remote for seamless calls 18Ω impedance for rich sound Frequency range 17Hz–21kHz for deep bass & crisp highs CX 300S Ear-Canal Headphones with Universal Smart Remote - Black, 508593

**Brand:** sennheiser
**Price:** ¥7906
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your daily grind with sound that works as hard as you do.

## Quick Answers

- **What is this?** CX 300S Ear-Canal Headphones with Universal Smart Remote - Black, 508593 by sennheiser
- **How much does it cost?** ¥7906 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/110119754-cx-300s-ear-canal-headphones-with-universal-smart-remote-black)

## 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

- • **Lightweight Comfort:** At just 12 grams, these headphones stay comfortable during long work sessions or travel.
- • **Tangle-Free Durability:** Robust, tangle-resistant cable built to last through your busiest days and commutes.
- • **Universal Smart Remote:** Control music and calls effortlessly across all your devices without missing a beat.
- • **Ergonomic Noise Isolation:** Customizable ear tips (XS to L) and in-ear design block ambient noise for uninterrupted focus.
- • **Immersive Sound Experience:** Sennheiser transducer tech delivers detailed audio with enhanced bass that makes every track pop.

## Overview

The Sennheiser CX 300S wired ear-canal headphones combine professional-grade 18Ω impedance drivers with a wide 17Hz–21kHz frequency range to deliver detailed sound and powerful bass. Featuring an ergonomic design with four sizes of ear tips for personalized noise isolation, a built-in microphone, and a universal smart remote, these lightweight 12-gram headphones offer durable, tangle-free cables for seamless music and call control across all devices.

## Description

Headphones with detailed sound and enhanced bass Built-in microphone and remote control for call and music control, ergonomic design on the ear for environmental noise isolation and uninterrupted listening. Strong, tangle-free cable for long-lasting hearing enjoyment. Improve your sound with Sennheiser CX 300S headphones, offering incredibly detailed sound reproduction and enhanced bass response thanks to Sennheiser transducer technology. The internal design minimises ambient noise, and the included ear adapter set ensures an individualized fit with four sizes (XS, S, M, L) to choose from. Intelligent remote control allows you to pause music and take calls on all devices.

Review: Great solid performer - Excellent earphones extra strong lead great sound
Review: Great Ear-canal Headphones. - Note 1: This is only the 2nd pair of ear-canal headphones I have used. Note 2: I have bought these for music listening purposes only. Pros: They are lightweight, comfortable and come very well packed. They have good length of cord and provide very good sound from: cassette player, Android Phone and mp3 player (Boom!). Was very impressed. There are numerous ear tips supplied but I found Aiivioll Silicone Ear Tips give more bass and fitted my ears better. I found also that you do not need high volume as they have high sensitivity. This means the battery driven or rechargeable devices should be able to play for longer. Cons. Wire noise can be experienced when cable banged/tapped due to high sensitivity.

## Features

- 508593
- Included components: 1 x sennheiser cx 300s ear-canal headphones with universal smart remote - black
- Connectivity technology: wired
- Made of quality Material

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07N1YLC23 |
| Age Range Description | Adult |
| Antenna Location | Listen to music |
| Audio Driver Type | Dynamic Driver |
| Battery Charge Time | 5 days |
| Best Sellers Rank | 253 in In-Ear Headphones |
| Bluetooth Version | 5.0 |
| Box Contents | Sennheiser CX 300S In-Ear Headphones with Universal Smart Remote Control, Black |
| Brand | Sennheiser |
| Brand Name | Sennheiser |
| Cable Features | Tangle Free |
| Carrying Case Material | Cardboard or plastic |
| Colour | Black |
| Compatible Devices | Laptops, Telephones, Tablets, Smart Speaker, Car Audio Systems, Gaming Consoles, Television, Desktops, Cellphones |
| Control Method | Remote |
| Control Type | Call Control |
| Controller Type | Corded |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.2 out of 5 stars 6,678 Reviews |
| EU Spare Part Availability Duration | 2 Years |
| Ear placement | In Ear |
| Earpiece Shape | Rounded |
| Enclosure Material | Aluminium |
| External Testing Certification | Não aplicável |
| Form factor | In Ear |
| Frequency Range | 17 Hz – 21000 Hz |
| Frequency Response | 20000 Hz |
| Global Trade Identification Number | 04044155245066 |
| Headphone Form Factor | In Ear |
| Headphone Jack | 3.5 mm Jack |
| Headphones Ear Placement | In Ear |
| Impedance | 18 Ohms |
| Is Autographed | No |
| Item Type Name | Do you want quality headphones? We recommend the Sennheiser CX300S, a headset with 18 Ohms of impedance. Built-in microphone so you can answer calls with them. |
| Item Weight | 12 Grams |
| Manufacturer | Sennheiser |
| Model Name | CX 300 |
| Model Number | 508593 |
| Network Connectivity Technology | Wired |
| Noise Control | Sound Isolation |
| Noise control | Sound Isolation |
| Number of Items | 1 |
| Product Features | Volume Control |
| Sensitivity | 118 dB |
| Specific Uses For Product | Music, Call Control |
| Style Name | Closed |
| Subject Character | no subject character |
| UPC | 615104327801 |
| Unit Count | 1.0 count |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | Bluetooth |

## Product Details

- **Brand:** Sennheiser
- **Colour:** Black
- **Ear placement:** In Ear
- **Form factor:** In Ear
- **Frequency response:** 20000 Hz
- **Headphone jack:** 3.5 mm Jack
- **Impedance:** 18 Ohms
- **Model name:** CX 300
- **Noise control:** Sound Isolation
- **Sensitivity:** 118 dB

## Images

![CX 300S Ear-Canal Headphones with Universal Smart Remote - Black, 508593 - Image 1](https://m.media-amazon.com/images/I/51csP83Mr5L.jpg)

## Available Options

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

## Questions & Answers

**Q: Hi, are they extremely comfortable in ear ?**
A: Whilst i dont have a  problem with sound, or the  comfort, i have  series  issue about how  readily and  easily the  actual rubber  ear buds comes off  on removing the headphones from your  ear, leaving then potentially deep within your  ear. The  mearest hint of  a fit, with the phone barely inserted  means it  can result in the rubber bud  staying lodged  within your  ear. Comfort fine, retrieveing a  bud  from your  ear, thats NOT GOOD and a different matter . This isnt  from putting the  bud in deeply either  as the name suggests ypu can. if you did, it could  result in tweezers or a  trip toa  doctor. Even when barely inserted this  can happen  !

**Q: Will these work on a MacBook for conference calls etc.**
A: Yes, I us men in my iPhone, my MacBook and my mac desktop. Good sound quality and the microphone works well enough too. Quite comfortable for long calls.

**Q: Does it have a microphone? The description doesn't say anywhere. Thanks**
A: yes
Microphone sensitivity
- 44dBV/Pa

**Q: Can noise isolation be turned off?**
A: There is no noise cancelling on them that i am aware of

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great solid performer
*by M***N on 23 December 2025*

Excellent earphones extra strong lead great sound

### ⭐⭐⭐⭐⭐ Great Ear-canal Headphones.
*by C***5 on 14 April 2025*

Note 1: This is only the 2nd pair of ear-canal headphones I have used. Note 2: I have bought these for music listening purposes only. Pros: They are lightweight, comfortable and come very well packed. They have good length of cord and provide very good sound from: cassette player, Android Phone and mp3 player (Boom!). Was very impressed. There are numerous ear tips supplied but I found Aiivioll Silicone Ear Tips give more bass and fitted my ears better. I found also that you do not need high volume as they have high sensitivity. This means the battery driven or rechargeable devices should be able to play for longer. Cons. Wire noise can be experienced when cable banged/tapped due to high sensitivity.

### ⭐⭐⭐⭐ Good sound quality,well made.
*by P***P on 5 June 2025*

These wired ear buds give well rounded sound with a bit extra bass. A good seal in ear is easy to achieve with the selection of silicone cups that are in the box. As a result outside noise is interference is markedly reduced. Cable entanglement is not a concern due to the type of cable used. The in-cable switch start/stop and track advance works well. My only niggle is the 3.5 mm jack is in some cases a bit tight to plug in or remove. Overall a good product in my opinion.

## Frequently Bought Together

- Sennheiser CX 300S Ear-Canal Headphones with Universal Smart Remote - Black
- 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/110119754-cx-300s-ear-canal-headphones-with-universal-smart-remote-black](https://www.desertcart.jp/products/110119754-cx-300s-ear-canal-headphones-with-universal-smart-remote-black)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-09*