13 reminder modes: vibration / buzzer / vibration + buzzer (each mode is accompanied by LED flashing) 2Keyboard: 10-channel calling keypad, directly press the corresponding number to directly send signals 310 battery charging slots 4Each pager has a built-in rechargeable lithium battery, low battery indicator, and charging indicator 5Built-in external antenna, open area working distance of about 1000 meters (3280 feet The wireless queuing system includes a 10-channel keypad wireless call button base and 10 wireless pagers. The base has 10 output charger slots for transferring 10 different codes via the keyboard buttons. This queuing system greatly improves work efficiency and prevents the client from waiting in long queues. It is therefore widely used in fast food restaurants, food courts, pizzerias, churches and car shops or other places where many guests are waiting for service. Features: 1. 3 reminder modes: vibration / buzzer / vibration + buzzer (each mode is accompanied by LED flashing). 2. Keyboard: 10-channel calling keypad, directly press the corresponding number to directly send signals. 3. 10 battery charging slots. 4. Each pager has a built-in rechargeable lithium battery, low battery indicator, and charging indicator. 5. Built-in external antenna, open area working distance of about 1000 meters (3280 feet). 6. Button function: long press for 3 seconds to switch on and off; short press to reset to standby. 7. Recording code SET: short press to enter the recording status; long press 5 seconds to clear the code. Specification: Plug type: US, UK, EU, AU (Optional) Weight: approx. 1185-1201g Receiver: Color: Black Working voltage: DC3.7V (rechargeable battery) Charging voltage: DC5V Working frequency: 433.92MHZ Standby current: 105mA Working current: 7510mA (vibration) Receive sensitivity: -1072dBm Battery capacity: 200mAh Decoder: Learning Code (AM) Size: 49 * 101 * 11mm / 1.9 * 4.0 * 0.4in 10-way Keyboard Host: Colour: Black Material: ABS Working voltage: DC5V/3A power adapter Working frequency: 433.92MHz Standby current: 245mA Transmit current: 10030mA Encoder: Learning Code (AM) Size: 130 * 190 * 33mm / 5.1 * 7.5 * 1.3in Package list: 1 * 10-channel Keypad 10 * Receiver 1 * Antenna 1 * Power Adapter 1 * English Manual Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.