Sound by meridian-experience three-dimensional audio that’s remarkably close to the original recording with rich bass and clear treble%ocs%Power battery life- Talk time 8 hours. Music play time 8 hours. Standby time 18 days%ocs%Fast Charging – 10 minute charging for 3 hours use%ocs%Dual microphones-two mics make sure every conversation is crystal clear%ocs%Vibration alert-the neckband vibrates when you get a text or call