The 3S is a Bluetooth 3.0 stereo headset with Bluetooth intercom designed specifically for motorcycles. With the 3S, you can call handsfree on your Bluetooth mobile phone, listen to stereo music, and have two-way intercom conversations in full duplex with a passenger or other riders. Thanks to the latest Bluetooth 3.0 and the advanced digital signal processing technology, the 3S offers the best sound quality for both incoming and outgoing sound in its class. Also, the easy-to-access and intuitive two-button operations make the 3S a perfect companion for motorcycles.