Amazon.comThe SMH10-10 is a Bluetooth v3.0 + EDR Class 1 Stereo Headset with long-range Bluetooth Intercom designed specifically for motorcycles. With the SMH10-10, you can call hands-free on your Bluetooth mobile phone, listen to stereo music or voice instructions of GPS navigations by Bluetooth wirelessly, and have intercom conversations in full duplex with a passenger or other motorcycle riders. Features include Bluetooth 3.0, multi-point connection, and conferencing for up to 4 peopleThanks to the latest Bluetooth v3.0 and the advanced digital processing technology, the SMH10-10 offers the best sound quality for both incoming and outgoing sound in its class. Also, the easy-to-access and intuitive button operations make the SMH10-10 a perfect companion for motorcycles. Bluetooth v3.0 WirelessSMH10-10 can wirelessly connect to other Bluetooth devices supporting HSP/HFP (Headset Profile/Hands Free Profile) and A2DP (Advance Audio Distribution Profile). HSP/HFP is standard in all phones with Bluetooth features. Almost all Bluetooth MP3 players, smartphone, and audio dongles support A2DP to send stereo audio to Bluetooth headsets like the Sena SMH10-10. Enjoy Bluetooth music playback control by AVRCP: play, pause, track forward and track back.Other Bluetooth features include Multi-Pair to allow intercom functionality for 4 persons, and compatibility with select motorcycle GPS systems. Use as an intercom, or connect to your portable devices Individual Adjustable Volume ProfilesYou can easily decrease/increase the volume of the voice, music and intercom using Jog Dial. The SMH10-10 can save volume levels of previously connected profiles. This means that phone volume (HSP/HFP), music volume (A2DP), and intercom volumes will be saved separately and return to its own saved volume level whenever associated profile is reconnected.Profile volume adjustment is only affected during the use of its specific profile. However, when changing volume during standby mode, then volume change applies to all profiles. Alert tones like low battery warning and connection tones can only be adjusted in standby mode. Easy Installation for Most HelmetsThe SMH10-10 will fit onto various types of helmets. The standard clamp, included in default packaging, will fit onto most helmets. For installations which may require extra wire length, ear buds instead of speakers, and wire microphone instead of boom microphone, Sena offers different types of clamps as an additional accessory (sold separately), to allow various installations and user preferences. Two-Year WarrantyThe SMH10-10 offers peace of mind in your purchase with a 2-year warranty against workmanship defects. See the warranty card in your product packaging for full details. What's in the Box?Sena SMH10-10 Bluetooth Headset, speaker/microphone clamp unit, USB power and data cable, 3.5mm stereo audio jack cable, glued surface mounting adapter, microphone sponges, speaker pads, velcro pads, Allen wrench (for installation), microphone cap, manual, warranty.Technical Specifications Talk time: 12 hours Standby time: 10 days Working Distance (Intercom): Up to 900 meters (980 yards) in open terrain Bluetooth: v3.0 + EDR Audio: Built-in SBC Codec, 48kHz (DAC) sample rate Battery Charging time: 2.5 hours Battery Type: Lithium polymer battery Headset Dimensions: 84.1 mm x 56.5 mm x 38.6 mm (3.3 in x 2.2 in x 1.5 in) Headset Weight: 60 g (3.01 oz) Clamp Dimensions: 223.8 mm x 85.5 mm x 30.6mm (8.8 in x 3.4 in x 1.2 in) Clamp Weight: 84 g (2.96 oz)Product DescriptionThe Sena SMH10 Motorcycle Bluetooth 3.0 Headset and Intercom was designed to keep you connected to your riding companions over longer ranges for conversation and music sharing--up to 900 meters (980 yards). When paired with a Bluetooth-enabled phone, it'll also let you make hands-free calls. The SMH10 features a Helmet Clamp Kit and Boom Microphone. The Jog Dial makes for an intuitive user interface that is much easier to control while