ITEM NAME:XG13 TWS Headset Bluetooth 5.0 Smart Waterproof Noise Reduction Earphone Qu K0F6 Feature: Colour: Black Headphones and charging compartment material: ABS Speaker specifications: 8 copper ring Speaker impedance: 16 ohms Speaker frequency response: 20Hz ~ 20KHz Speaker rated power: 3mw Speaker 1k sensitivity: 98db Talk time medium volume: 3h Music time medium volume: 3.2h Standby time: 120h Bluetooth version: 5.0+edr Transmission distance m: 7-10m Power consumption: 13-15 mA Input power: 93mW Headphone charging time: 1h Headphone battery capacity: 50 mAh Charging battery capacity: 350 mAh Cycle chargeable times: 2 times Charging time outside the charging compartment: 1.2h Battery voltage: 32-4.2v Package List: 1* earphone.Headphone battery capacity: 50 mAh. Bluetooth version: 5.0+edr. Speaker specifications: 8 copper ring. Speaker impedance: 16 ohms. Speaker frequency response: 20Hz ~ 20KHz. Speaker rated power: 3mw. Speaker 1k sensitivity: 98db.