AR/EN Silent KC-01-E USB Wired Keyboard with Large Keycaps, Noise-Free Typing, Fn Multimedia Hotkeys, Full-Size Layout with Num Pad, Ergonomic Design, 1.5m USB Cable, for Laptop, PC, Mac – Black

Wireless 5.0, a connection distance of 10-15 meters, faster with less loss.For hands-free HD calls.Protein-imitation leather earmuffs, soft and breathable for long term wearing.Self-adaptive fine tuning telescopic head beam, pressure free wearing.Lightweight and convenient, wired and wireless dual-use mode, not only can be used as a wireless headset, but also as a wired headset.

Bluetooth edition:Bluetooth 5.3Rating:5V=200mAFrequency response:20Hz~20KHzHorn sensitivity:112+3dB(IEC711At 1KHz)Drive Unit:$40mmMicrophone sensitivity:42‡3dBSNR:90dBBattery capacity:300mA Lithium batteryOperating Voltage:3.7VPlaytime:50% ≥ 18H;100% ≥13HStandby time:≥ 130HCharging time:1.5HDimension and weight:210*65*228mm; 630gSystem requirement:Bluetooth enabled audiovisual device