Wireless bluetooth in-ear earphones. Listen to music, and take calls with the headphones on (built-in microphone). Bluetooth V4.2, supports HFP, HSP, A2DP & AVRCP and operating range up to 10 meters. Rechargeable batteri - 50mAh lithium battery, charging time app. 1,5 hours - charges by MicroUSB. Talk time up to 3 hours. Play music time up to 3 hours. Standyby time up to 180 hours. Buttons on the headset for power, pair, Volume +/-