Introduction
The Sennheiser CX 80U in-ear headphones are designed to deliver a balanced and natural sound experience. Featuring a lightweight design and an in-line one-button smart remote, these wired USB Type C earphones offer convenience and quality for everyday listening and communication. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your CX 80U headphones.
The Sennheiser CX 80U headphones offer a direct USB-C connection for immediate audio playback.
What's in the Box
- CX 80U earphones
- 3 ear adapter sizes (Small, Medium, Large)
- Safety guide
Setup
1. Ear Tip Selection and Fit
The CX 80U headphones come with three different sizes of ear tips (S, M, L). Selecting the correct size is crucial for both comfort and optimal sound performance, including effective passive noise isolation. Experiment with each size to find the one that creates a secure and comfortable seal in your ear canal.
Choose the appropriate ear tip size for a comfortable and secure fit, enhancing noise isolation.
2. Connecting the Headphones
The CX 80U headphones feature a USB Type C connector for direct connection to compatible devices. Simply plug the USB-C connector into your smartphone, tablet, or laptop's USB-C port. No pairing or charging is required.
Plug the USB-C connector directly into your device for instant audio.
Operating Instructions
Music and Call Control
The CX 80U headphones are equipped with an in-line one-button smart remote for convenient control of your audio and calls. The functionality of the button may vary slightly depending on your connected device and operating system.
- Single Press: Play/Pause music, Answer/End a call.
- Double Press: Skip to the next track (music playback).
- Triple Press: Go back to the previous track (music playback).
- Press and Hold: Activate voice assistant (e.g., Siri, Google Assistant) or reject an incoming call.
Please note that volume control is typically managed directly from your connected device.
The in-line remote allows for easy management of music playback and phone calls.
Maintenance
- Cleaning Ear Tips: The silicone ear tips can be removed and gently cleaned with a mild soap solution and water. Ensure they are completely dry before reattaching them to the earphones.
- Cleaning Earphones: Use a soft, dry cloth to wipe the earphone bodies and cable. Avoid using harsh chemicals or abrasive materials.
- Storage: When not in use, store your headphones in a clean, dry place. Avoid tangling the cable to prevent damage.
- Avoid Moisture: While the headphones have some water resistance, avoid prolonged exposure to water or high humidity.
Troubleshooting
| Issue | Solution |
|---|---|
| No Sound | Ensure the USB-C connector is fully inserted into your device. Check your device's volume settings. Confirm that the audio output is directed to the USB-C headphones. |
| Poor Fit or Ambient Noise Not Reduced | Experiment with the three included ear tip sizes (S, M, L) to find the best fit for your ears. A proper seal is crucial for comfort and effective passive noise isolation. |
| Microphone Not Working | Verify the USB-C connection. Ensure your device's audio input settings are configured to use the headset microphone. |
| Remote Control Not Responding | Ensure the headphones are securely connected. Some functions may depend on your device's operating system or the specific application being used. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Sennheiser |
| Model Name | CX 80U |
| Model Number | 800125 |
| Color | Black |
| Ear Placement | In Ear |
| Form Factor | In Ear |
| Impedance | 28 Ohms |
| Frequency Range | 17 Hz – 20,000 Hz (-10 dB) |
| Sensitivity | 119 dB |
| Noise Control | Passive Noise Cancellation |
| Connectivity Technology | Wired |
| Headphone Jack | USB-C |
| Item Weight | 10 Grams |
| Material | Plastic, Silicone |
| Additional Features | Lightweight, Microphone Included, Noise Isolation |
| Control Method | Remote |
| Compatible Devices | Cellphones |
| Specific Uses | Travel, Music |
Warranty
The Sennheiser CX 80U in-ear headphones are covered by a 1-year manufacturer's warranty. Please retain your proof of purchase for any warranty claims. For detailed terms and conditions, refer to the warranty information provided in the safety guide included with your product or visit the official Sennheiser website.
Support
For further assistance, technical support, or service inquiries regarding your Sennheiser CX 80U headphones, please visit the official Sennheiser support website or contact their customer service department. You can typically find contact information and FAQs on the Sennheiser global website.