![30 pcs bell 1 display service waiter call transmitter and receiver](http://unistoreonline.myshopify.com/cdn/shop/products/product-image-480110373_530x.jpg?v=1575426470)
Brand Name: Singcall
Frequency: 433Mhz
Working voltage: 9V
Capacity: 500
Distance : 500m
Receiver weight: 0.9KG
Working current: <1A
Receiver size : 23*16*4cm
Button size: 60*60*20mm
Button material: ABS+silicon
Button weight: 40g(including battery)
Brand Name: Singcall
Frequency: 433Mhz
Working voltage: 9V
Capacity: 500
Distance : 500m
Receiver weight: 0.9KG
Working current: <1A
Receiver size : 23*16*4cm
Button size: 60*60*20mm
Button material: ABS+silicon
Button weight: 40g(including battery)