Product Description Support TF card and FM radio. Support wireless 4.2 version downwards Charging time: 2 hours Talk Time : 6 hours Standby time : up to 15 hours Scope of work : 10 meters With the end number re-dial function. Large and small volume adjustment. Forward.backward Selections feature, Pause function. AVRCP remote control capabilities. Driver unit: Diameter: about 40mm / 1.57 inch Working scope: 10 meters Easy to controls your headphones.
