2 keys call button WPE820
Usage：The transmitting terminal in airport and station etc for people to call the security men.
5 keys call button WPE750
Usage：The transmitting terminal in hotel for customer calling waiter.
3 keys call button WPE730
Usage：The transmitting terminal in hotel for customer calling waiter.
Ufo 1 key call button WPE700
Usage：The transmitting terminal in cafe, teahouse, bank etc for customers to call the waiters.
Hambuger 1 key call button WPE560
Usage：The transmitting terminal in repast,teahouse,netbar,KTV etc for customers to call the waiters.
Touching call button WPE520C
Usage：The transmitting terminal in hotel for customer calling for checking out.
1 key touching call button WPE520
Usage：The transmitting terminal in hotel for customer calling for checking out.
Call button for building site dedicated WPE510
Usage：The transmitting terminal in construction site for worker to call the staff operating the lift.
Call button for construction site floor exclusive WPE500
Usage：The transmitting terminal in construction site for worker to call the staff operating the lift.
