Features

Full range stereo sound
Plug into a USB port to instantly listen and talk without wires.
Pillow-soft, swivel-mounted ear cushions
Mic Mute™ Feature, the microphone mutes when the boom is raised.
Music controls - play and skip track on iTunes® and Windows Media Player®

Specifications

Technology - Digital wireless 2.4GHz (This is not a Bluetooth device)
Full Range Stereo - Stereo headset
Ear Cushion Design - Closed ear
Noise Canceling Microphone - Yes
Microphone Boom - Rotates / bends
Microphone Mute - Fast Mic Mute
Volume Mute/Controls HID - on ear
Speaker Driver Size - 40 mm diameter
Speaker Frequency Response - 20Hz - 20kHz
Microphone Frequency Response - 100Hz -10kHz
Wireless Range - Up to 40 feet

More Information

Standby mode  -  This headset has a power save mode which maximizes standby time if it loses connection to the adapter or if the PC is not on.
After 30 seconds it enters "poll or standby" mode after 15 minutes the headset will automatically shut down.
If it comes back into range of the adapter within this time frame the connection will come up again to the headset.

Battery  - Up to 8 hours off a full charge

Charging method - Mini USB via the USB port on the PC

Charge time- Approximately 3.5 hours from a completely drainiend battery