CTDB01 Wireless Calling System with 15 CTT19 Call Buttons and Doorbell Display Receiver for Restaurants Hotels Coffee Shops Bars

model number:CTDB01/CTT19 brand name:CATEL place of origin:Beijing, China Application:Bank, Cafe, clinic, dessert bar, Home, Hospital, Hotel, nursing home, Office, Restaurant, School, Supermarket customized packaging:1 Feature:Powerful and affordable frequency:433.92 MHz Material:ABS quantity of each set:1 private mold:Yes Type:calling pager wireless distance:200