Feel the beat all day Up to 20 hours of total battery life Crystal clear calls with dual-mic ENC Auto pair and auto-connect Smart in-ear detection feature Great sound with 14.2mm driver and AAC codec Long battery life of 20 hours* allows you to use it from morning till night Thanks to the power consumption control of the new chip, the earphones can be used for about 5 hours on a single full charge and 20 hours in combination with a charging case. The battery endurance allows you to listen to music all day long