Product information: Color: elegant black OpenBuds P3, noble white OpenBuds P3 Transmission range: 10 meters Chip type: Zhongke Lanxun Battery life: 4-8 hours Function: call function, support music Material: Plastic aluminum alloy Usage: ear hook Style: sports style Drive unit: 14.2mm Impedance: 16Q Battery capacity of charging bin: 300mAh Input:DC5V/300mA Charging bin size: 90.7*50.5*28.2(mm) Frequency response: 60-16kHz Rated Power: 40MW Headphone battery capacity: 65mAh Standby time: 90 days