Product Parameters:Product Model: BK5-LEDBluetooth Version: Bluetooth 5.0Bluetooth Receiving Distance: 10 MetersProduct Capacity: 400 MAProduct Charging Time: 2 HoursListening Time: 15 HoursStandby Time: 148 HoursSpeaker: 40mmImpedance: 32ΩProduct Material: APS + PP + PUFeatures:Using RGB Three-Color LED, Uniform Light Effect, Bright Colors40mm Aperture Speaker With Clear High FrequencyProduct Packaging:Bluetooth Headset*1Charging Cable*1Audio Cable*1Manual*1