1.This 1200m intercom support 1 to 5 Users to talk real-time,Max pair 6 interphone at a time(1 main,5 sub),the main eassily switch to talk any one of other 5 sub,but the 5 sub can't talk each other.
2.If you only purchase 1 PC,it will only support 1 user,so please purchase the same quantity you want the users,Support up to 6 users.
Bluetooth interphone V6C is designed for helmets with stereo headset, widely used for Referee and assistant Referee,motorcycle helmets, bike users,Real CS against game,skiing enthusiasts,aerial photo,construction and mining,fire control personnel,traffic police,Container scheduling,Mountaineering,Skateboarding,Cranes,etc.. Full duplex calls allow you to speak and hear another partner speak
This high end multi interphone system allows up to 6 users(1 to 5) to connect at a time (of course you will have to buy more systems to get to 6).
*Long range-1200 meters intercom, Bluetooth interphone kits for helmet motorcycle, Snowmobile, ski, ATV etc.
*communication system 6 users.
*Up to 120km/h speed
*Up to 7 hours talking time
*Auto-receiving mobile call
*Audio navigation from GPS
*Line-in audio interface
*Wind noise DSP cancellation
*Full weather protected
*It can pair "rider to rider" or "rider to pillion". Can pair 6 interphones at a time, and easily switch to any one of them.
*Works with any Bluetooth equipped mobile phone,GPS or MP3 Stereo music
* With 3.5mm audio input
One power charger（US, UK and EU power can be optional）
One charging cable
One user manual
One helmet clip
One simple screwdriver