Wireless earphones in metal and ABS. It has BT 5'0 transmission and a 500 mAh battery, approximately 3 hours of autonomy and up to 300 hours on standby. Includes microphone, button to answer calls and connection to the mobile device's playlist. Charging case included and compatible with micro USB. Supplied in a gift box. 31 x 78 x 38 mm | Charging box: 79 x 40 x 32 mm | Box: 128 x 110 x 58 mm