Jabra EVOLVE 20 MS Mono USB Headband, Noise cancelling,USB connector, with mute-button and volume control on the cord, with foam ear cushion, Microsoft optimized
Headset bandwidth: Wideband
Speaker bandwidth Music mode: Wideband
Speaker bandwidth Speak mode: Wideband
Microphone bandwidth: Wideband
Battery included: No
AC power supply: USB power supply by PC
Bluetooth device No
Connection (mini jack, USB, etc): USB
Cord length: Control cable: 95cm, HS cable: 120cm