, Retekess Call Waiter Wireless Calling System Receiver Host +2 Watch Receiver+15 Call Button Transmitters Restaurant Pager

Brand Name: retekess
Origin: Mainland China
Model Number: Wireless Calling system
Certification: CE
Certification: FCC
Watch Working voltage: DC3.7V rechargeable Li-poly battery
Watch Working frequency: P433MHz
Watch Transmitter quantity: max 999pcs
Watch Receiving sensitivity: -108dBm
Host Working frequency: 433MHz
Host Transmitter quantity: 999 pcs
Host Prompt modes: Dingdong / Music / English voice report
Host Letters Show: A.B.C.D.E.F
Host Adapter: Input: AC 100-240V 50/60Hz, Output: DC 5V/1A
Button RF frequency: 433MHz
Button Power: 12V23A battery (included)
Button Emission distance: 150 meters (in open area)
Button Working temperature: -20 ℃ to 55 ℃
With a sticker: can be fixed on the table