Wireless Waiter Call System Pager for Restaurant Cafe Dentist Clinic Office Conference with 4 Receivers Fashion watch design,IP6 level waterproof,Wireless technology Millions of groups learn to code,Low voltage indication Built-in removable, rechargeable lithium battery.Intelligent code, easy to use and simple.<br> Suitable for the elderly, the disabled, hospitals, nursing homes,restaurants, kitchens, factories and other call .<br> The product features excellent, rechargeable battery power, long standby time, with perfect charge and discharge protection circuit; With automatic detection of battery capacity function. When receiving the wireless call signal,the machine will send out vibration, buzzer, and flash.<br> Different batches, different angles and lighting, there are slight differences between the actual product and the picture, which will not affect normal use<br> Colour:Black<br> Material:ABS<br> Package Contents:<br> 1x Wireless Pager<br> 1x Receiver<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.