Includes micro USB cable. Battery power source. Built-in Li-Ion rechargeable battery. Alexa compatibility for easy voice control. Supports Supersonic Wi-Fi speaker app. Built-in microphone for Alexa functionality. Multi-room capability with
Voyager legend. Triple microphone active dsp cancel noise and wind. Voice command and caller announce. Smart sensor technology. One word call answer. P2i nano coating for sweat and moisture protection.