GaiRen Referee Communication System, Referee Headset Intercom with Earphone for Soccer Football Volleyball Official Handball (2 Pack Left)

【Full Duplex】Our referee communication system allows you to connect 3 referees meanwhile for conference intercom, total range up to 1000 meters. 【Clear and Stable Sound】With improved noise reduction technology and Bluetooth 5.1version, the high-fidelity speakers can make the sound you hear clear and stable even in a noisy stadium. 【Wide Applications】Our referee headset is an excellent partner for most competition referees like volleyball official, soccer, football referees, basketball referees, golf referees, etc. In addition to referees, these radios are suitable for daily training, construction sites, venue scheduling and other outdoor activities. 【Low Power Consumption】After circuit optimization, the power consumption is reduced by 20%. Just 2 hours of charging, talking time is up to 12 Hours. 【Pairing Memory Function】Our wireless communication system has a pairing memory function, once paired, it will automatically search for a pairing at the next restart.