And the CSR8635 manages battery (130mAh Li-ion) life and delivers industry-leading so well that you can enjoy upto 6 hrs of rich music/ Talk Time or 100 hrs of standby time all with a single Charge!! It’s performance that’s unheard of in a device this small. A voice accelerometer recognises when you’re speaking and works with CVC 6.0 chip enabled microphones to filter out external noise and focus on the sound of your voice which gives you that amazing voice quality.