Bluetooth Wireless Stereo Headphones w/ built-in mic Free yourself from confining wires and immerse yourself in music with IOGEAR's wireless Bluetooth stereo headphones! Now you can comfortably enjoy your favorite music without messing with annoying wires! IOGEAR's Stereo Headphones use Bluetooth technology to let you enjoy music up to 33 feet from the source, in beautifully crisp MP3-quality stereo sound. IOGEAR's behind-the-neck design makes the headphones very comfortable to wear even for extended periods of time. You can also easily change tracks*, adjust the volume, and pause your music with the integrated headphone control buttons. The built-in rechargeable battery offers up to 6.5 hours of music play time. A built-in microphone supports use with Bluetooth mobile phones. You can even pause your music and pick up an incoming phone call with the press of a button. This unit works with any Bluetooth-enabled devices (computer, PDA, MP3 Player) that support A2DP and AVRCP Bluetooth profiles. For devices that do not come with integrated Bluetooth, you may use the IOGEAR Bluetooth Audio Transmitter (GBMA211W6), which transmits audio signals wirelessly to your Bluetooth Stereo Headphones. *Functionality of the Headphone control buttons require Bluetooth receiver on your music device to support AVRCP profile. Bluetooth Stereo Audio Transmitter Enhance your audio source devices with Bluetooth capability! IOGEAR's Bluetooth® Audio Transmitter brings wireless Bluetooth technology to all your music and audio source devices including iPod, iPhone, MP3 players, computers, home stereos, and many more. Best of all, it is Plug-n-play. Absolutely no software or complicated configuration is required. Simply plug the IOGEAR Bluetooth® Audio Transmitter into the audio jack of your music source device, and enjoy listening to stereo quality sound through your Bluetooth-enabled receiving device such as Bluetooth-enabled headphones** or stereo systems** wirelessly. IOGEAR's Bluetooth® Audio Transmitter will essentially work with any audio source device that has a standard 3.5mm or phono plug audio jack. NOTE: **IOGEAR's Bluetooth® Audio Transmitter will work with most Bluetooth-enabled headphones or stereo systems.