Wireless: 5.0 Support range: 2.402-2.480Ghz Connection distance: 10m Speakers: 10mm, deep bass Speaker size: 10mm Impedance: 16±20%Ω Sensitivity: 105±3dB AT 1K Hz Frequency response: 20-20kHz Battery: 200mAh with IC protection Play time: 15h Charging time: 2h Charging connector: Micro