The KHS-620 headphones with Bluetooth® wireless technology combines a comfortable fit with great acoustics. It features an ergonomically designed headband with an integrated control button that allows you to easily manage your music and phone calls. The combination of a compact form factor and stylish design make this headset an excellent companion for school, the office or the road.
 
Lightweight and comfortable on-ear fit
Cushioned headband is easy to wear for extended periods
Bluetooth platform, compatible with most mobile devices
On-board multifunction button for power, music and phone call management
Omnidirectional microphone
Up to 5 hours of normal operation and approximately 30 hours of stand-by time
Folding design for compact mobility; extremely lightweight
Micro-USB port to recharge the battery
Headphone
Form factor: On-ear
Driver unit:Ф40mm
Maximum power output: 20mW
Frequency: 20Hz-20,000Hz
Impedance: 32Ω ± 15%
Sensitivity: 105 ± 3dB/mW (S.P.L at 1kHz)
Microphone
Form factor: Built-in
Directivity: Omnidirectional
Frequency: 100Hz-18,000Hz
Impedance: 32Ω
Sensitivity: 105dB at 1kHz
Connectivity
Connection type: Bluetooth V. 2.1
Wireless RF frequency: 2.402-2.480GHz
Wireless range: 33ft
Battery
Battery type: Rechargeable lithium battery
Battery charging time: 1 hour
Battery run time: 5 hours
Battery standby time: 25 hours