PC, smartphone and tablet headset: easy to connect and switch between devices
Rich digital stereo: laser-tuned speaker driver, built-in equalizer and cancellation
40-foot wireless range: you can listen or chat from a PC up to 12 m, or pair with a smartphone or tablet using Bluetooth. Input impedance: 32 ohm
Six-hour rechargeable battery: With convenient USB charging, you can listen and chat for a long time. Frequency response (headphone): wideband: 30Hz to 15KHz, narrowband: 40Hz to 3.2KHz. Frequency response (microphone): 100Hz to 6,500Hz
Padded comfort: adjustable padded headband and carved earmuffs, feel comfortable