WarrantyExcelvan BT Motorcycle Motorbike Skiing Helmet Bluetooth Headset with 1 year warranty and friendly customer service.</br>Hands-FreeFor your capable cell phone enable you to drive intently and safely.</br>Wireless MusicWireless bluetooth music receiver and speaker enjoy streaming music from cell phone or other device through A2DP.</br>Wireless CommunicationBetween three riders by Bluetooth system. Receive the audio navigation message from your Bluetooth enabled GPS.</br>Full Duplex InterphoneWireless headset that for bluetooth enable cell phone at a range of up to 10m (33ft). Bike-to-bike intercom for rider passenger or two separate bikes up to 500m (0.3mi).</br></br>Product Description</br></br>The interphone is designed for the motorcycle rider and passenger who wish to have clear and reliable wireless communications<br> while riding. This headset is compatible with Bluetooth cell phones GPS mp3 and can be suited to any sort of helmet for motorcyclists.<br><br> <b>Features:</b><br> 1. Full duplex interphone. Wireless headset that for bluetooth enable cell phone at a range of up to 10m (33ft). Bike-to-bike intercom for<br> rider?? passenger or two separate bikes up to 500m (0.3mi).<br> 2. Wireless communication between three riders by Bluetooth system.<br> 3. Wireless bluetooth music receiver and speaker?? enjoy streaming music from cell phone or other device through A2DP.<br> 4. Hands-free for your capable cell phone?? enable you to drive intently and safely.<br> 5. Receive the audio navigation message from your Bluetooth enabled GPS.<br> 6. Automatic switch between bluetooth cell phone?? intercom?? stereo music.<br> 7. With DSP echo cancellation and noise suppression technol