Specification of wrist pager K-300plus:
1. Can work with 500pcs 1-key and multi-key transmitter in max
2. Can show 3 group call number in one time
3. Show 4-digit number from 0001-9999 and first letter can be A-Z
4. Can indicate different service type via words or letter.(call;bill;drink; dessert; help etc and A-Z)
5. Can record when call come in and Can count the call times of each number
6. Can store 50 calls and track the history calls up and down
7. Shows current time when stand-by
8. 3 reminder ways:sound promt and vibration or both
9. Battery is rechargeable
10. Dimension:50*41*16mm
11.two display mode:live view and queue view 
" live view" means, when No.1 No.2 No.3 call in turn, screen is show 0003 0002 0001. Newest call number show on the top of screen. 
" queue view" means, when No.1 No.2 No.3 call in turn, screen is show 0001 0002 0003. Oldest call number show on the top of screen. 


Specification of call bell K-M 
1. Water-proof
2. Work with our receiver to combined the wireless calling system
3. Can be installed on each table, when the customer need help only press the button, the calling no will be shown on the screen, so everyone can easy to know who is calling.
4. Single-key: Call
5. Material: PC
6. Color:White;Blue;Black;Yellow; Grey;Red.                                  
Technical Parameter:
Working voltage: DC12V
Working current: ≤35mA
Use Frequency: 433.92mhz
Transmitted Power: ≤10mW
Transmitted Distance>300m in open area
Dimension : 60*60*30mm
Any language any LOGO acceptable