Capacitive touch mute button with LED 1500mA built-in Li-Ion battery Micro-B port for charging, BYOD microphone and upgrading Low power indicator Bluetooth v2.1+EDR protocols Proprietary 2.4GHz wireless technology with dynamic beamforming technology Ultrasound pairing technology High quality audio coding with error tolerance Built-in 8 omni-directional MEMS with 5-meter pickup range
