BrandFodsports ColorBlack Ear PlacementOpen Ear Form FactorOn Ear Impedance32 【2000M Maximum Distance & Music Sharing】M1-S Pro is equipped with Bluetooth 5.0 version, It has high compatibility and stability. If there are no obstacles such as buildings in a straight line, the motorcycle helmet intercom maximum communication distance of the group is about 2000 meters, all riders can speak with clear sound quality. It also featured music sharing that allows two riders enjoy the same song during their trip. Method: turn on 2 units and pair them successfully, pause the music first, then press and hold the volume button "-" and the function button(the largest button) on one of the units at the same time for 3 seconds until you hear the beep: start sharing music. 【Support 8 Riders Group Intercom】Full duplex call for group motorcycle headsets system, Support for multiple people simultaneous call. With M1-S headsets, you can ensure hands-free security and convenience, listen to music, retrieve GPS routes, and receive voice commands wirelessly via Bluetooth, let you enjoy racing fun. Notice: the latest version of M1-S Pro is v2.0, if there is a compatibility problem between the old version you purchased before and the new version you purchased recently, they can't enter into the intercom state automatically after pairing successfully, then you just need to press the intercom button to enter into the intercom state and use it normally! https://a.co/d/1RqOyQj