Focket Wireless Pager System for Restaurants - 20pcs SU-669-S Guest Calling Devices with Fast Heat Dissipation & Stable Performance | Durable Queuing Solution for Cafes, Hotels & Retail Stores (US Plug)

Features: Guests can sit down to rest after ordering and no need to wait in line at the bar. It is very convenient for guest. The receiving distance of the partition wall is 50-100 meters, and the receiving distance of the open space is 1500 meters (the distance can not reach the addable signal booster). Meal emitters can transmit signals to a far distances, guests can sit anywhere in the store, also can stroll around. This product is made of engineering plastic material-ABS, military quality and exquisite workmanship, long service life can saving shop costs. Imported processing chipset, high-performance noise reduction coding and decoding circuit, fast heat dissipation and strong stability. The appearance of this device is stylish, giving the guests a pleasant dining experience. Specification: (Keyboard transmitter) Size: about 162 * 112 * 72mm / 6.3 * 4.4 * 2.8in Working voltage: DC12V Working frequency: 433.92MHZ Working current: ≤100mA±30mA Standby current: <24mA±5mA Coding method: learning code (receiver) Color: black Size: about 80 * 80 * 10mm / 3.1 * 0.3in Working voltage: DC3.7V (rechargeable battery) Charging voltage: DC5V Working frequency: 433.92MHZ Working current: 75±10mA Standby current: 10mA±5mA Decoding method: learning code Battery capacity: 360mAh Function: charge only, low power prompt, online search, vibration, sound, light rotation, free to switch prompts, maximum support 999 discs High-end professional processing chip: imported processing chipset, high-performance noise reduction coding and decoding circuit, fast heat dissipation and strong stability Package List: 1 * Keyboard Transmitter 20 * Receiver 2 * Charging Base 3 * Power Adapter 1 * Manual