Retekess Wireless Pager Restaurant Calling System Receiver Host + 4 Watch Receiver + Signal Amplifier+ 40 Hookah Call Buttons

Retekess Wireless Pager Restaurant Calling System Receiver Host + 4 Watch Receiver + Signal Amplifier+ 40 Hookah Call Buttons 4001295848988 ? Pre-Order +/- Sampai Alamat 10-15 Hari ? FREE ONGKIR+PAJAK ?? Garansi uang kembali jika Rusak, Beda Produk Model Number : Wireless Calling system Brand Name : retekess Origin : Mainland China Certification : CE,FCC Watch Working voltage : DC3.7V rechargeable Li-poly battery Watch frequency : 433MHz Watch Receiving sensitivity : -108dBm Watch Transmitter quantity : max 500pcs Button frequency : 433MHz Button Power : 12V23A battery (included) Button Emission distance : 100 meters (in open area) Button Working temperature : -20 to 55 Repeater frequency : 433MHz Repeater Sensitivity : -108dBm Repeater Working current : lt;255mA Repeater Adapter : AC 100-240V 50/60Hz Repeater Working voltage : DC 12V 1A Repeater Transmitting distance : Twice the button communication distance Retekess Restaurant Calling System Call Waiter Service Receiver Host+4 Watch Receiver+Signal Repeater+40 Call Buttons Hookah Features Receiver Host: 1.AppearanceAll black, can be placed directly on the desktop, or can be installed on the wall. 2.Comes with 8W high-fidelity speakers, and can be connected to an external speaker with audio adapter cable. 3.With a button battery, no time will be lost after power off, no additional settings are required. 4.It can be used with 433 pager and launch keyboard for call services and call scenes. 5.It can be used with 3 pairs of launch keyboards at the same time. It is suitable for multi-window call number and meal taking scene. 6.Partition settings can be made to set up 6 areas to meet different needs. 7.4 groups of call numbers can be displayed, and 7 different voice call prompts. 8.The controller can