Descriptions This professional Referee Headset Football Wireless Headsets enable 3 referees to listen and talk at the same time while arbitrating during football games with clear instrction and conversation.

▶▶▶We have pairing video, see below link: https://youtu.be/vZJihSAiOCc
(We also have 4 referee headset, check ASIN B0768ZTNSG)
Features
① Three users Real-Time referee headset football wireless headsets communication
② No need hot keys referee headset football wireless headsets, easy to use
③ Memory pairing referee headset football wireless headsets, simple and easy.
④HI-FI sound referee headset football wireless headsets
⑤ High-power football referee communication, which can be used In a noisy environment. Stereo HI-FI headset
⑥ National Level 5 waterproof standard referee headset football wireless headsets

Specification
Referee Headset Football Wireless Headsets Bluetooth version: Bluetooth 5.1
Referee Headset Football Wireless Headsets Chip: CSR BC5
Referee Headset Football Wireless Headsets Battery capacity: 850Mah
Speaker power: 0.25W
RDS: NO
Referee Headset Football Wireless Headsets Battery type: polymer lithium battery
Referee Headset Football Wireless Headsets Waterproof grade: National Level 5 waterproof standard
Automatic volume adjustment: no
Football Referee Communication Operating voltage: 3.3v-4.2v
Football Referee Communication Talk time: 18h
Football Referee Communication Working temperature: -10-45 degrees Celsius
Charging time: 2.5hour
Standby time: 300hour

Package:
3 pcs Referee Headset Coummunication set
3x refereee earphones
3x Charging Cables
3x Arm bags

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 with us.