LEBHAR MK9 Wireless Earphone

Color: Black, Bluetooth protocol: 5.0 Transmission range: 10 meters Chip type: Jerry Waterproof performance: does not support waterproofing Is it binaural? Unilateral handsfree Battery life: 0-4 hours Function: call function, support music, digital display screen Material: PC+ABS Usage: ear hanging type Style: Sporty style Listening time: about 30 hours Headphone battery: 200MAH Wireless frequency: 2.4GHz Charging voltage/current: 5V/1A Charging time: approximately 2 hours Standby time: 200 hours Horn impedance:φ 16MM; 32&; Microphone sensitivity: -42Db Operating temperature: -10-50°C Earphone weight: 16G Earphone size: 6.2 * 5.3 * 1.1CM OPP bagged weight: 28G