- Model: 500A<br />- Maximum talking range 500 meters between two BT interphones、 real two-way wireless<br />- Effective operation up to 120km/h speed<br />- 10-meters Bluetooth sensing range<br />- Wireless hands free communication for motorcyclists and skiers<br />- Support Headset profile、 Hands-free、 A2DP+EDR profile<br />- Works with any Bluetooth equipped mobile phone or MP3 for stereo music<br />- Up to 7 hours talking time<br />- Up to 100 hours stand by time<br />- Auto receiving cellphone calls<br />- Fits any motorcycle helmet<br />- Fully weather protected<br />- Wind and noise compensating microphone with slim headset speaker<br />- Drive safely while talking with friend<br />- Built-in 500mAh rechargeable battery recharged by the included AC adapter or any powered USB port<br />- Package included:<br />- 1 * BT interphone<br />- 1 * Rider speakers and microphone<br />- 1 * Helmet mount kit set<br />- 1 * USB charging cable<br />- 1 * 100-240v US plug AC USB adaptor<br />- 1 * Screws set<br />- 1 * English User manual<br />                                                                                                                                Dimensions: 0 in x 0 in x 0 in (0 cm x 0 cm x 0 cm)<br />Weight: 6.38 oz (181 g)