Feature:1. Support smart charging, low battery prompt, online search, vibration, sound, light rotation, free to switch prompts, can replace the damaged receiver, up to 999 discs.2. Adopting imported high-end professional processing chipset, high-performance noise reduction coding and decoding circuit, fast heat dissipation and strong stability.3. Bring convenience to guests, guests can rest in the empty space after ordering, without waiting in line at the counter.4. Very far launching distance. Guests can sit anywhere in the store, or stroll around and wait for the meal to remind them to pick up the meal.5. Made of ABS engineering plastic material, military quality, exquisite workmanship, durable and durable, and long service life.6. Stylish appearance, the guests are not only eating but enjoying the high-tech dining experience and respected satisfaction.7. Other restaurants have gradually used this meal picking device. If you don't keep up with the trend, it is a step backwards.Spec:Item Type: ReceiverSize: About 80 x 80 x 10mm / 3.1 x 3.1 x 0.4in Working Voltage: DC3.7V (Rechargeable Battery)Charging Voltage: DC5V 4AWorking Frequency: 433.92MHZWorking Current: 75±10mAStandby Current: <12mA±3mADecoding Method: Learning CodeBattery Capacity: 360mAhFunction: Smart charging, low battery prompt, online search, vibration, sound, light rotation, free to switch prompts, can replace the damaged receiver, up to 999 discsHow to pair the receiver with the keyboard transmitter:1. Boot Method: Press and hold the key to boot, the LED light flashes to prove that it is turned on and enters the standby state.2. Recording Method: You can use the PIN card or toothpick and o