Maxquall 4 Referees Talk Same time Football Referee Judger Arbitration Walkie Talkie Football Soccer Handball Coach Referee Headset

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About Maxquall 4 Referees Talk Same Time Football Referee

Descriptions This professional referee intercom headsets enable referees to intercom talk with other referees while arbitrating during football games with clear instrction and conversation. Features ① Four users Full duplex Real-Time communication ② No need hot keys, easy to use ③ Memory pairing, simple and easy. ④ Latest chipset from Amercia,HI-FI sound ⑤ High-power headset, which can be used In a noisy environment. Stereo HI-FI headset ⑥ National Level 5 waterproof standard Specification Bluetooth version: Bluetooth 3.0 Chip: CSR BC5 Battery capacity: 550Mah Speaker power: 0.25W RDS: NO Battery type: polymer lithium battery Waterproof grade: National Level 5 waterproof standard Automatic volume adjustment: no Operating voltage: 3.3v-4.2v Talk time: 8h Working temperature: -10-45 degrees Celsius Charging time: 2.5hour Standby time: 150hour Package: 4x V4 referee intercom device 4x refereee earphones 4x Charging Cables 4x Arm bags 4x Instructions Warranty 1 Year(Within 1 year after you purchase, we supply repair service for free) If you need the accessories for this intercom, you can contact wiht us. Note: We have pairing video, if you need, please contact with us to get.