Put one-button pager(APE310) in the kitchen for cook to call waiter. And put 3-button pager(APE130:Service,Bill,Cancel button) on the table for customer to call waiter. Press pager(APE310) or 3-button pager(APE130), then the fixed receiver(SC-R50) and wrist receiver(APE6900) will receive the signal, then the number of pager will show on the screen of 2 kinds of receiver, someone will come to provide service. For cook and customer notifying the waiters. Wireless receiver SC-R50 01. Built-in antenna fixed receiver. Long signal distance, strong stability. 02. Touchable keys. Standby mode, showing the current time 03. 7 kinds of music, with voice reporting function, music length can be set. 04. With a 299 call extension, convenient and fast registration method 05. Two register modes are optional.(multi-key or single-key mode). Compatibility special multi-functional buttons(APE100) directly Dimensions:12.2*4.3*1.5 in(310*110*37mm) N;et weight: 1.17lb(530g) I nstallation: Table, Wall-hung,Hanging S;hell material: ABS Display type: one group of 3-5 digits (can be set) having storage function ;Power supply: 100-240V AC 50/60Hz -DC12V/1A Prompt mode: 7 kinds of music, 3 kinds of scene voice reporting ;Prompt music length: 2-30 seconds ;Receiver sensibility: -114dBm Frequency: 433.92MHz ;Call button capacity: 299 ;English letter beginning display: A, B, C, D, E, F, H, P, L, J. ;Display time: 1-99 seconds, or infinite Read more Wrist receiver APE6900 01. Waterproof. 02. Has calendar, clock and alarm clock function. Rechargeable battery, 5 days standby time. 03. With fast delete function, it can delete one registered number or all registered numbers with only one key. 04. Can download the registration information by charged software, makes the registration easier. 05. With encryption function, avoiding the information lost by mistake operation. 06. OLED screen, thinner, lighter and more flexible anti-seismic and knock. Key number: 2 (FUN and ENT) ;Key life: Million times Number of display: 10 scrolling numbers ;Screen: OLED monochrome screen Display type: a group of three-digit or five-digit number (with storage function) ;Battery capacity: 150mAh ;Vibration time: 1 to 15 seconds Pager capacity: 500 ;Prompt mode: Vibration only ;Standby time: 3 days ;Calling number display: all positions can be set with English letter or digit(0-9, A-Z) Read more Pager APE130 01. Three keys to call, Service , Bill and Cancel. 02. Special water-proof handling, practicability and security. 03. Registration of super stability. Anti-temperature and humidity changes. 04. Change the number at any time, super reusability. Size: Base: 4.2*2.8*1.7 in(130* 70 *42mm) Acrylic panels: 7.09*4.29*0.16in (180*109*4mm) Weight: 0.37 lb(170g) Material:ABS Frequency:433.92Mhz Read more Pager APE310 01. Built-in silicone pad, 360 degree waterproof handling. Three-key to call, Service, Bill and Cancel. 02. Small, thin, no screw, replace the battery easily. 03. Match to all of SINGCALL receiver. 04. Anti-temperature and humidity changes. Strong EMC anti-interference. Size:2.56*2.56*0.65 inches(65mm*65mm*16.5mm) ;Net Weight:0.08 lb(37g) Material:PC Surface: Polishing , Spray painting, Frosting Key: PC ;Frequency:433.92Mhz Call distance: 130-200ft(40-60m) indoors, 1600-2600ft(500-800m) in the open air EMI compatibility: In line with the national standard Battery: Alkaline Battery 12V 23A ;Battery life: 12-18months package include fixed receiver x 1 ;watch receiver x 2;3-button pager x 3 ;1-button pager x 1 Read more