http://www.snapdeal.com/product/digitek-dbhs001-stereo-bluetooth-headphone/667445789524

Supports bluetooth, tf/fm/mp3. Connects to mobile, laptop, pc with bluetooth connectivity. Transmission distance: upto 10 meters. Bluetooth hands-free calls. Built-in polymer battery , can play upto 8 hours. Twists to a powerful speaker. 32Ohm,100mw, 40mm speaker. Super bass, noise cancellation . Built-in low distortion rate of digital power amplifier. One-piece swing function buttons directions to change to headphone/speaker mode. 1) Headphone mode : when ear cups are twisted inwards direction, headphone mode is activated. 2) Speaker mode : when ear cups are twisted outwards direction, speaker mode is activated.