User Manual Sony WH-CH510 Wireless Headphones

To use your headphones for video calls on your computer, you need to make sure that the Speaker and Microphone settings are set correctly. Otherwise, the voice of the other party may not be heard or the other party may not hear you.
Before we walk you through the settings, it's important that you know the different types of Bluetooth® profiles and what they are used for. Advanced Audio Distribution Profile (A2DP) is intended to playback music. The Hands-free Profile (HFP) and Headset Profile (HSP) are intended for voice calls.
Depending on the video calling app, the voice call may not be available when connected using the A2DP profile, so make sure to select the HFP/HSP profile when you want to use the headphones for video calls.

IMPORTANT: This article applies only to specific products and/or operating systems. Check Applicable Products and Categories for details.
When making or receiving a call using the headphones, your voice and other sounds are picked up from the headphone microphone Sidetone function. Your voice, the surrounding sounds, and the sound of the headphone operation will be heard through the headphone earpieces. This is not a malfunction.
Note:
The volume level and sensitivity of the Sidetone function can't be adjusted, and the function can't be turned off.
When using the headphone microphone, make sure that it's not too close to your mouth. If the microphone is too close, it may cause an echo or make your voice too loud (for WI-C200/C310 only).

Make sure to turn up the volume level on the computer.
Place your device within one meter (three feet) of the computer.
Make sure your computer supports the Advanced Audio Distribution Profile (A2DP) Bluetooth® profile.
The drivers needed to connect your device to a computer are already included in the operating system.
If your computer is asking for a Bluetooth driver, contact your computer manufacturer.
If you're using a VAIO® computer, Bluetooth drivers are available online.

Reasons why your ears may hurt when putting on or wearing headphones:
- Under certain environmental conditions, especially when the air is very dry, it is not uncommon to experience a slight static electricity discharge or mild shock when your body comes in contact with another object, in this case the ear buds touching your ear(s). The energy from this natural discharge is extremely small and was not generated by your product but rather a natural environmental occurrence. There is no safety issue with the product itself.
- The design may not fit your head and/or ears. They may be too big, too small, or too tight.
- You may be experiencing a symptom called listener fatigue. That is where your eardrums work hard to manage the volume that flows through your ear canal. The louder the volume, the bigger the strain on your eardrums, which then causes the feeling of fatigue.
- How long have you been wearing the headphones? The longer you wear headphones, the more your ears may hurt.

The range of the Bluetooth® connection is approximately 30 feet (10 meters). However, maximum communication range will vary depending on obstacles (person, metal, wall, etc.) or electromagnetic environment.