VNETPHONE V6C Football Referee Intercom Full Duplex 1200M Headset Wireless Bluetooth Interphone Earpiece New M8617 Description: Feature: Long range-1200 meters intercom, Bluetooth interphone kits for Football Referee. helmet motorcycle, Snowmobile, ski, ATV etc. communication system 6 people. 2 person communicate for everytime Up to 120km/h speed Up to 8 hours talking tim 1200m maximum intercom range Auto-receiving mobile call Mobile/mp3/stereo music 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 2 of them. Works with any Bluetooth equipped mobile phone,GPS or MP3 Stereo music With 3.5mm audio input, can work with external media play devices, like MP3/portable CD player/IPOD and etc. Plastic + Rubber button, more stable structure, better waterproof performance. This system is fully weather protected. Wireless hands free communication for motorcyclist Safe driving while talking with friends Play stereo music from your mobile phone Can be used as a Bluetooth headset and a wireless music headset while you& x27;re not riding Package Includes: 1 x Intercom 1 x Earphones 1 x Charging Cable 1 x User Manual 1 x Arm Bag includes: