Brand: Remax Model: RB-M43_x000D__x000D_Bluetooth version: 5.0_x000D__x000D_Receiving distance: 10 meters_x000D__x000D_Impedance: 32 ohm_x000D__x000D_Output power: 9.5 Watt_x000D__x000D_Standby time: 40 hours_x000D__x000D_Play time: about 5 hours_x000D__x000D_Charging time: 2 hours