Bluetooth Version : V5.0 Bluetooth Profile : A2DP , AVRCP , HFP , HSP Transducer : 2 x 45mm Output Power : 2 x 12W Signal-to-nosie Ratio : >=80dB Battery : 7.4V, 2200mAh Input Power : 5V/2A Play Time : Up to 16 hours (varies by volume level and audio content ) Charging Time ...