Motorola MOTOROKR S9 Bluetooth Stereo Headphones MOTOROKR S9 seamlessly integrates wireless mobile music and calls. A mobile phone with the Bluetooth Stereo Profile (A2DP) or Bluetooth Adapter for iPod is required for stereo listening. Combining behind-the-head wearing style with innovative music and call controls, the MOTOROKR S9 is a must have for anyone who leads an active lifestyle and loves their music. *Switch from music to calls with the press of a button*Integrated touch sensitive controls*Behind-the-head wearing style helps provide a comfortable and stable fit*Water and sweat resistant*Enjoy up to approximately 6 hour music listening, 7 hours talk or 6 days standby time from a single charge *180 mAh lithium-ion rechargeable battery*Version 2.0 Bluetooth wireless technology for better call quality, less interference and faster connections*Class 2 Bluetooth wireless technology range up to 10 m (33 ft)*Mini USB connector for charging *Weight-1.14 oz*Size-126 mm x 130 mm x 48 mm