use SAW DEVICE aeronautical commerication device ,wireless staff calling equipment

Wireless Staff Calling  Equipment  1. System Configuration   (1) Transmitter (2) Signal Receiver   2. How it Works The transmitter is for guest use The signal receiver is for waiter or waitress use.       3. Specification and Pictures  

Physical Dimension	82*65*28MM
Color:	white
Case Material:	PC (importing from German)
Key Material	Silicone
Control	Single Call Button
Transmission Range	1500m free field
Button Battery:	23A12V
Long Life of Battery	1 year 50 calls in a day
Waterproof:	Yes

         4. the button  can work with the following receiver         5. Soutions for your reference   6. System Advantages   Advantage to Customer   Customers can call a waiter when they are ready to order. Build a quiet, comfortable environment for customers. Waiters will have more time to do other things. Table calling system will avoid waiter interruption during private moments. The customers don’t need to look around, wave his hands or shout to get the waiter's attention. The customers can easily call the waiter to place initial order, during the course of the meal for more food, drinks, bread, butter, wine, dessert, coffee, bill, etc. The novelty will surely attract new customers and will delight your existing clients. Avoid disturb other customers while calling waiter. ... ...   Advantage to Business   Waiters will be more efficient. Waiters will be less stressed. Tables will be available faster. Customers will like it so much and will come back. Restaurant will sell more food. Wireless technology for easy installation Multiple servers work simultaneously without affect each other       7.          8. Warranty Conditions    We provide 1 month replacement and 12 months maintenance warranties. Items can be replaced during the first month or maintained for the first year.
  9. Promised by Seller about Returns    We do our best to serve our each customer the best that we can.  We will refund you for items returned within 7 days of you receiving them, for any reason. A full refund will be given if items are returned in their original condition.