1. Button Design: Switch to reminder mode, select vibration mode; press down to choose vibration and buzzer mode. Keyboard: Press digits 0 to 9 to select the desired call number (1 to 999), then press the 'Call' button to initiate the call. If an incorrect number is entered, press the 'Delete' button to reselect. 2. Fully Functional Practical: Supports learning code registration mode, allowing addition of up to 999 pagers. Each pager features a builtin rechargeable lithium battery, low power indicator, and charging indicator. Power/Reset: Long press for 3 seconds to turn on/off; short press to to standby mode. Code Recording: Press for 3 seconds to enter code recording status. 3. 20 Channels: Includes a 20channel base and 20 pagers, significantly reducing customer wait times in long queues. Offers two reminder modes—vibration and buzzer—each accompanied by LED flashing. 4. Easy to Use Long Standby Time: External antenna ensures a working range of approximately 1000 meters (3280 feet) in open areas. Equipped with up to 20 charging slots for batteries, greatly enhancing work efficiency and minimizing guest wait times.