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Microphone does not pick up sound | SoundLink® around-ear wireless headphones II
Be sure the phone is not muted.
Check the phone to see if the mute functionality has been enabled. The phone and the headset each have the ability to mute a call. Check for a visual representation of the muting aspect for the phone. For more information, see Muting your product.
Keep your product within 33 feet (10 meters) of your personal device.
Distance and obstacles like walls, doors, or other electronics can weaken the Bluetooth signal. If you're having trouble, try moving your personal device and product closer together or relocating other devices that may cause interference.
Check for and install any available product updates
Regardless of the issue you are experiencing with your product, try updating it. Visit btu.Bose.com and follow the instructions to ensure your product has the latest features and enhancements.
Clear your product's memory of previously paired Bluetooth® devices, then reconnect.
Your product remembers the last several devices it connected to so it can quickly reconnect to them. In case of an issue with the device memory, clear it, then reconnect your device. For more info, see Clearing the product memory of paired Bluetooth® devices and Connecting a Bluetooth® device.
Try connecting a different Bluetooth device.
If your Bose product can connect to another device, Bluetooth functionality is working. In cases like this, the issue could be with the first device or its settings.
Reset your product.
Much like rebooting a smartphone, your product might need to be reset on occasion to correct minor issues. For more information, see Resetting your product.