KSC-695 black Bluetooth headband headphones Characteristics Connectivity: Bluetooth 5.0 Bluetooth Chip: Jerry 6955f  Battery capacity: 200MAH Charging time: about 1.5 hours Playing time: 5 hours Standby battery life: 300 hours Product size: 195*170*84mm Net Weight: 191g With 3.5 mm audio jack connector Material: ABS + fabric Transmission distance: 10M Speaker diameter: 40mm Sensitivity: 110 ± 3dB spl at 1kHz Impedance: 32 Ω Frequency Response: 20Hz-20KHz Rated power: 15MW * 2 Bluetooth Protocol: A2DP, AVRCP