1、The pager is made of ABS engineering plastic. High quality, exquisite workmanship, durable and anti‑fall, long service life to save the costs. 2、The appearance of the pager is fashionable and exquisite. Let the guests not only in the dining but in the experience of high‑tech dining enjoyment, the satisfaction of being respected. 3、Professional imported processing chipset, high‑performance noise reduction coding and decoding circuit, fast heat dissipation and great stability. 4、Long transmission distance. Guests can sit at any place in the restaurant or stroll around, waiting for the device to remind them to get their food. 5、Convenient for customers. After ordering, customers can take a rest at the table instead of waiting in line. 6、A perfect food pickup assistant. Other restaurants have taken to using it, and if you don't keep up with the trend, you will going backwards. Item Type: Guest Paging-Queuing System Keypad Sender: Size: Approx. 121x80x30mm/4.8x3.1x1.2in Working Frequency: 315MHZ/433.92MHZ Working Current: ≤ 75mA±10mA Standby Current: <10mA±5mA Coding Method: Learning code Round Receiver: Color: Black Size: Approx. 80x80x15mm/3.1x3.1x0.6in Working Frequency: 315MHZ/433.92MHZ Working Current: 100±30mA Standby Current: <24mA±5mA Decoding Method: Learning code Battery Capacity: 200mAh Function: Smart charging, low battery prompt, online search, vibration, sound, light rotation, free to switch prompts, maximum support 999 discs 1 x Keypad Sender 20 x Receivers 2 x Charging Base 1 x 1 To 3 Power Adapter 1 x User Manual