Graflsoa K3 Wired Headset

Specification: Item:Business Headset Model:K3 Material:ABS Color:Black BT:V 5.0 Communication distance:10m 32.80ft Sensitivity: -42±1dB Speaker Diameter:13mm Speaker Impedance:32Î@1kHz 1mW Rated power:3mW (maximum power 5mW) Frequency Response:20Hz-20KHz Battery type: polymer battery Charging box battery:500mAh Headphone battery:90mAh Charging time:1-2 hours Headphone music time:10 hours Headphone Standby Time: 40 hours Frequency Response Range:20Hz-20KHz Package size:13*9.5*3cm 5.1*3.77*1.2inch Package Weight:155g 5.5oz Package Contents: 1 x Business Headset 1 * Charging Box 1 * USB Cable 2 * Ear Plugs 1 * User Manual