SINGCALL Wireless Calling System， Wireless Pager Calling System， Restaurant Paging Systems，Rechargeable Lithium Battery， Waterproof Watch Receiver APE6900 It Can't Be Used Alone!![Product Information]- 01. Waterproof， and the grade is IPX7. (It can be put into 3.3ft (1.0m) deep water， then it still can work for more than 30 minutes.)
- 02. Has calendar， clock and alarm clock function. Rechargeable battery， super standby time (about 5 days).
- 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.
