The Sena SMH5 Low-Profile Motorcycle Bluetooth Headset and Intercom provides two-way intercom functionality that keeps you connected to your riding companion for conversations and music sharing through the crystal-clear sound of the Bluetooth stereo headset. The Jog Dial and large button on the SMH5 make for an intuitive user interface that's easy to control while riding. Pushing the button lets you cycle through all device functions. With less fuss, you'll be able to ride safer. Staying connected while enjoying the ride at the same time is at the top of the list for any rider. Bluetooth 3.0 technology gives you the ability to make hands-free calls and participate in a one-to-one intercom conversation with a riding buddy up to 400 meters (430 yards) away, while delivering GPS directions, and providing the capability to listen to and share music when paired with an MP3 player or smartphone. The SMH5 delivers crystal-clear natural sound that gets an automatic boost in noisy environments, while Advanced Noise Control technology cuts down on background noise for both incoming and outgoing audio. The Bluetooth music playback control features play, pause, track forward, and track back functions, and each audio source has its own adjustable volume level. You get up to eight hours of talk time and seven days of stand-by on a single charge. All registered Sena owners get access to free firmware upgrades, which ensure your SMH5 is always operating with the latest software updates. Meanwhile, integrated voice prompts (available in English, French, German, Italian, and Spanish) help you quickly learn your way around the device. Even if your companions don't have Sena gear, the SMH5 uses the Universal Intercom protocol, which allows your gear to work with their gear, regardless of brand. The SMH5D-02 is a Bluetooth v3.0 + EDR Class 1 Stereo Headset with long-range Bluetooth Intercom designed specifically for full-face helmets. With the SMH5D-02, 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. This package includes two headsets and everything you need to install into two full-face-type helmets. Features include Bluetooth 3.0, multi-point connection, and conferencing for up to 4 people Thanks to the latest Bluetooth v3.0 and the advanced digital processing technology, the SMH5D-02 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 SMH5D-02 a perfect companion for motorcycles.Bluetooth v3.0 WirelessSMH5D-02 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 SMH5D-02. 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 Voice PromptSafety is a key factor when out on the road and Sena has integrated voice prompts into all of their units to ensure riders can maintain handsfree control. Voice prompts allow riders to operate functions such as GPS, volume control, mobile phone calls and more without needing to take their hands off of the handle bars. Sena provide voice prompt options for multi-language, English, French, German, Italian, and Spanish.This is necessary to ensure safety is maintained during times of traffic or congestion.Individual Adjustable Volume ProfilesYou can easily decrease/increase the volume of the voice, music and intercom using Jog Dial. The SMH5D-02 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 Full-Face HelmetsThe SMH5D-02 will fit onto various types of full-face 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 boom microphone instead of wire microphone, Sena offers different types of clamps as an additional accessory (sold separately), to allow various installations and user preferences.What's in the Box?Sena SMH5D-02 Bluetooth Headset, clamp unit, helmet speakers, attachable boom microphone, USB power and data cable, glued surface mounting plate, microphone sponges, speaker pads, velcro pads for speakers and boom mic, attachable boom mic holder, Allen wrench (for installation) manual, warranty.