1、The pager signal can be received separately without the need for base station service. Built-in antenna. 2、With sleep function: This product has a sleep function. When the customer does not need to receive a call, he can choose to enter the sleep state. In the sleep state, the clock and alarm functions still work, and almost no power consumption. 3、With 3.7V polymer lithium battery, the normal standby time is about 20 days. 4、Anti-temperature and humidity change function, safe, stable and highly reliable. 5、Suitable for hotels, bars, restaurants, factories, workshops, offices, restaurants, restaurants and entertainment. Features: Wrist Watch Receiver (CTW05): 1. Display a set of four digits: The unit can display a set of four digits or letters and store 10 numbers. Press the M key to scroll through the page and press the Enter key to confirm the call and delete. 2. There are two ways to remind you of ringing and vibrating: customers can choose different prompting methods according to actual needs, ringing and vibration can be switched at will, simple and convenient. 3. With 500 calling extensions, any calling extension can set letters and numbers combination. Any digit can be set to 10 digits such as 0~9 and letters such as ABCDEFGHIJLMNOPQRSTUWY and (-). 4. Each call can be set to 2 digits, 3 digits or 4 digits, such as 01, ABC, or A-08. 5. With alarm clock function. 6. With sleep function: This product has a sleep function. When the customer does not need to receive a call, he can choose to enter the sleep state. In the sleep state, the clock and alarm functions still work, and almost no power consumption. 7. With vibration, ringing, and sleep function. 8. With 3.7V polymer lithium battery, the normal standby time is about 20 days. 9. The pager signal can be received separately without the need for base station service. Built-in antenna. Pager (CTT33): 1. Suitable for hotels, bars, restaurants, factories, workshops, offices, restaurants, restaurants and entertainment. 2. With a waterproof base, both waterproof and convenient to replace the battery or repair. 3. Placed on the table, when the customer needs service, press the function button, the indicator light is on and send a signal to the receiver. 4. This machine works with all receivers, portable mobile (BP) receivers or watch machines, and can receive the number to be serviced at any time and any place. 5. The appearance is fashionable, convenient and practical. 6. Waterproof, easy to replace battery or repair. 7. Move the position at will, so that customers can use it when they need it. 8. Use SAW DEVICE aeronautical communication special parts to ensure its signal transmission stability. 9. Super stable registration method, no garbled phenomenon. 10. Built-in channel anti-aliasing function, built-in timing circuit design. 11. Anti-temperature and humidity change function, safe, stable and highly reliable. 12. Unaffected by cloudy, thunderstorms and environmental changes, super strong and stable. 13. You can change the number at any time, and the reusability is strong. 14. Perfect energy-saving design, the battery can be used for more than half a year. Specification: Product Model CTW05 Function & Use The service personnel receive the receiving end of the customer call, such as a coffee shop, a tea house, an internet cafe, etc. Transmission Distance The theoretical distance of the open area is 1500 meters, and the actual distance is tested according to the location. The indoor distance is generally 100-150 meters. Compatibility Suitable for any JiaXun caller Size 50 * 15 * 40mm / 2 * 0.6 * 1.6in  (without strap) 273 * 22mm / 10.7 * 0.9in (including body length) Frequency Point 433.92MHZ; 315MH Power Suitable for 5V = 1A charger, built-in 3.7V polymer lithium battery Color Black Material ABS Engineering Plastic Product Model CTT33 Size 60 * 55 * 21mm / 2.4 * 2.2 * 0.8in Battery 1 * 12 v battery Calling distance 500 meters (open area) Material ABS plastic color White Package List: 1 * Watch Receiver CTW05 10 * Pager CTT33 1 * Data Line Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.