The Aluratek Bluetooth Wireless Stereo Headphones delivers hands-free convenience and superb hi-fidelity stereo sound wirelessly. Stream your favorite tunes and listen to audio from your smartphone, tablet, PC or Mac laptop. Connect with friends and colleagues thru Skype, Yahoo Messenger, Windows Live Messenger, Gmail and AIM with the integrated microphone. Easily switch between phone calls and music with the touch of a button. Wirelessly roam up to 33 feet away from your paired Bluetooth device. ABH04F features Bluetooth v2.1 + EDR and support for A2DP (Advanced Audio Distribution Profile) which enables the stereo audio wireless link between your Bluetooth devices (remembers up to six paired devices) for the best possible audio quality. The built-in lithium ion rechargeable battery provides up to 12 hours of continuous talk and listening.