Nitrate Bluetooth Earbuds

case: 3 ( h ) x 8 ( dia ) earbuds: 61 ( l ) x 3.5 ( w ) x 1.8 ( h )case: EVA • earbuds: ABSsupports playback from smartphones, tablets or most other Bluetooth compatible audio devices internal, rechargeable lithium polymer battery recharges via USB cable ( included ) 1.5 hours recharge time 3 hours playback time • built-in microphone supports call pick-up