CTTN85 Call Button Dimension:143*75*43 mm
Frequency: 433.92MHZ
Power:2*12V Zinc Carbon battery(Model 23A)
Call Distance:1000meters(Open area)
Color: White
Material :ABS plastic
Menu Size:184×102×4.5(mm)
Press Key : five key(order, service, water, bill, cancel)
Contact:Booker
Mobile:+8613366999382
Tel:WhatsApp: 8617316276580
E-mail:sales@catel.cn
Address:No.36 Xiejia Industry Park, Changping district, Beijing, China