Harmonics Twins II offer truly natural, rich and authentic stereo sound with goose-bumps giving powerful bass performance. Instead of click buttons, use Soft Touch to Easily Answer, decline it, put it on hold; Play/Pause Music by Double Clicking, ,activate voice assistant by Triple Click on Left Earbud, Enter/ Exit Gaming Mode by Triple Click Right Earbud. It comes with three sizes of ear-buds suitable for all ear shapes. The case is pocket-friendly and has in-built 380mAh battery with LED indicator and the earphones also have 40mAh inbuilt batteries. Now you can enjoy wireless music for 4 hours. Most power efficient Bluetooth 5.0 BLE low energy which does not drain the battery of your phone quickly.