The BT-S2 1000m Waterproof Wireless Bluetooth Intercom FM Radio Interphone for Motorcycle Helmet is a Bluetooth headset specially designed for motorcycle riders and passengers who wish to have clear and reliable wireless communications. It is compatible with Bluetooth-enabled cellphones and fits any sort of motorcycle helmet. This headset allows you to dial、 answer or reject phone calls as well as to listen to FM radio and Bluetooth music. DSP echo cancellation and noise suppression technology ensures high quality voice calls while riding. Don&acute;t hesitate to buy now!                                    <p>Features</p>            <ul><li> Wireless headset for Bluetooth-enabled cellphones at a range of up to 10 meters</li><li> Bike-to-bike intercom for riders and passenger or two separate bikes up to 800-1000 meters</li><li> Dial、 answer or reject phone calls、 receive phone calls automatically</li><li> FM radio function</li><li> Support audio transfer and last number dialing</li><li> Stream music from cellphone via A2DP or connect GPS</li><li> Control music play through AVRCP: forward、 backward、 play、 pause</li><li> Automatically switch among Bluetooth calls、 intercom、 stereo music and FM radio</li><li> DSP echo cancellation and noise suppression technology for high quality voice calls while riding</li><li> Waterproof design</li><li> Connect to MP3、 GPS、 walkie-talkie and more using audio cable</li><li> Designed for wired helmet (with a belt to fasten) and wireless helmet</li><li> Up to 10 hours talk time when connected to cellphone</li><li> Up to 6 hours talk time when using the intercom feature</li><li> Up to 300 hours ultra long standby time </li></ul>                                                            <p>Specifications</p>            <table width="100%" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td width="131"> Model</td><td width="365"> BT-S2</td></tr><tr><td width="131"> Bluetooth Version</td><td width="365"> 3.0+EDR</td></tr><tr><td width="131"> Frequency</td><td width="365"> 2.4GHz</td></tr><tr><td width="131"> Supported Bluetooth Profiles</td><td width="365"> A2DP、 AVRCP</td></tr><tr><td width="131"> Operating Range</td><td width="365"> Up to 10m</td></tr><tr><td width="131"> Battery</td><td width="365"> Rechargeable 450mAh Lithium Polymer Battery</td></tr><tr><td width="131"> Standby Time</td><td width="365"> Up to 300 hours</td></tr><tr><td width="131"> Talk Time</td><td width="365"> Up to 10 hours</td></tr><tr><td width="131"> Intercom Time</td><td width="365"> Up to 8 hours</td></tr><tr><td width="131"> Charging Time</td><td width="365"> 3 hours</td></tr><tr><td width="131"> Power Adapter</td><td width="365"> DC 5V 500mA (Optional)</td></tr><tr><td width="131"> Plug Type</td><td width="365"> US Plug</td></tr><tr><td width="131"> Color</td><td width="365"> Orange & Black</td></tr><tr><td width="131"> Dimensions</td><td width="365"> (3.54 x 1.57 x 1.18)" / (9 x 4 x 3)cm (L x W x H)</td></tr><tr><td width="131"> Weight</td><td width="365"> 3.17oz / 90g  </td></tr></tbody> </table>                                                            <p>Package Includes</p>            <ul><li>1 x Intercom</li><li>1 x Headset </li><li>1 x Headset Clip with Screws</li><li>1 x Screwdriver</li><li>1 x Velcro (On the Helmet)</li><li>1 x Travel Charger (US Plug)</li><li>1 x Velcro Pad</li><li>1 x Audio Cable</li></ul>