Convenient external speaker – make phone calls through external speaker%ocs%Slim and seamless design – Premium One-body look & design%ocs%Hi-fi sound solution with Meridian Audio – Multi-metal layer unit for rich bass and clear mid and high%ocs%Fast Charging – 10 minute charging for 3 hours use%ocs%Talk time 8 hours. Music play time 8 hours. Standby time 18 days