***** **********Best Quality Guranteed. *****TheFT4 Bluetooth communication device includes all accessories you need to fit an open face, modular, or full-face helmet. *****With the FT4, you can call hands-free on your Bluetooth mobile phone, listen to music or voice instructions from GPS navigation, and activate wireless Intercom mode for rider-to-rider or rider-to-passenger intercom talk within a range of 1.2 Miles (2000 Meters). *****The MOTO FT4 is compliant with Bluetooth Specification V 4.0 supporting the following profiles: Headset Profile (HSP), Hands-Free Profile (HFP), and Advanced Audio Distribution Profile (A2DP). *****This headset also provides the industry's best combination of wind and ambient noise reduction with the miniature boom microphone with advanced noise cancellation. *****The main unit is powered by a rechargeable lithium ion/polymer power cell that provides 10-15 hours of active use from a full charge. Standby time is over a week.