GaiRen Referee Communication System, Professional FBIM Referee Headsets with Earphone for Soccer Volleyball Ofiicial Football Handball (1 Right Earpiece)

【Professional Referee Intercom】Our Professional FBIM Referee Intercom allows you to connect 4 referees meanwhile for conference intercom, total range up to 1500 meters. 【Clear and Stable Sound】With improved CVC noise reduction technology and Bluetooth 5.1version, even in noisy stadiums, the high-fidelity speakers also can make the sound you hear clear and stable. 【Wide Applications】FBIM referee headset is an excellent partner for most competition referees like football referees, volleyball official, basketball referees, golf referees, etc. In addition to referees, this communication system is 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%. With 850mAh large battery capacity, just 2 hours of charging, talking time is up to 19 Hours and standby time is up to 260 Hours. 【Waterproof】With IP65 waterproof, the headset can handle almost all weather conditions. The Bluetooth headset can withstand 14℉ to 122℉ and can be used in most countries and regions.