<b>The BT-S3 is a Bluetooth v3.0+EDR Class 1 Stereo Headset with long-range Bluetooth Intercom designed specifically for motorcycles. </b><br><br><b>Major Functions: </b><br>●DSP echo cancellation and noise suppression technology ensures crystal clear, high-definition audio for an amazing talk or music-listening experience with 110km/h speed. <br>●In headset Intercom mode, riders can communicate at a remarkable range of up to 1000m at open ground. <br>●A group of 2-3 riders can communicate each other with full-duplex communication technology,supports 3 riders to pair and only 2 riders intercom at the same time. <br>●BT-S3 could pair other BT-S series easily.<br>●Built-in FM Radio could automatically select the best frequency that can be received for the program that is being listened to on journey.<br>●Bluetooth mode enables you operate your mobile phone and listen to music on journey.<br><br><b>General: </b><br>●Intercom time: 6 hours<br>●Talk time: 8 hours<br>●Music time: 10 hours<br>●Standby time: 300 hours<br>●Operating temperature: -10˚C - 55˚C (14°F - 131°F)<br><br><b>Bluetooth:</b><br>●Profiles: Headset Profile, Hand-Free Profile (HFP) <br>●Advanced Audio Distribution Profile (A2DP) <br>●Bluetooth v3.0+EDR<br><br><b>Certificates:</b><br> CE、FCC、ROHS、BQB<br><br><b>What's in the Box?</b><br>1 x Headset / Intercom<br>1 x USB Cable<br>1 x Headphones and Microphone<br>1 x Wrench<br>1 x Headset Clip with fastening screws<br>1 x Headset Clip<br>1 x Audio Cable<br>1 x User Manual<br>AC Adapter not included(it can be charged by any phone adapter) <br><br><b>Tips:</b><br><b>●If you have any questions, please contact us ASAP and we will try our best to resolve them until you are satisfied.</b><br><b>●If your helmet has speaker pockets, don't assume that's the best spot for the speakers. Please make sure the speakers are placed on your ears so that the sound you hear will be louder.</b>