Motorcycle 2 Rider Large Group 1200M full-duplex stereo Bluetooth wireless helmet headsets, designed for installation into most open-face, flip-front and full-face style helmets.  With the WAYXIN-R5, you can call hands-free on your Bluetooth mobile phone, listen to stereo music or voice instructions of GPS navigations by Bluetooth wirelessly, and talk between any 2 of them in a range of 1000M (3,280 feet) distance.  The WAYXIN-R5 is compliant with the Bluetooth Specification v3.0 supporting the following profiles: Headset Profile, Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP). Please check with the manufacturers of other devices to determine their compatibility with this headset.  Superior audio fidelity has been achieved with our wide-fidelity, non-ported and ultra-slim helmet speakers. This headset also provides the industry's best combination of wind and ambient noise reduction with the miniature boom microphone.  Main unit is powered by a rechargeable Lithium Ion/Polymer power cell providing 8-12 hours of use from a full charge.     Features: FM Radio Built FM Tuner;  Full Duplex Wirless Bluetooth Handsfree Intercom Communication;  Rider to Passenger or Bike to Bike Wireless Intercom;  1,000M Intercom Range;  A2DP buetooth for Wireless Music & Audio GPS Direction;  High-End Sound With Advanced Noise Cancellation Technology;  Auto Receiving Cellphone Calls & Intercom Calls;  Waterproof Design, Handles All Weather Conditions;  Plug Earphone & Microphone In Helmet - Fits Into The Ear Well Of All Standard Helmet;  Up to 120km/h Speed;  Up to 8 Hours Talk Time, 120 Hours Standby Time;     Package Includes: 1 x Bluetooth intercom;  1 x Boom & Microphone ( for both full-face and open-face style helmet);  1 x Mounting Bracket & Clamp;  1 x USB Cable(without Power Charger);  1 x Screwdriver;  2 x Screw;  1 x User Manual