Wireless Calling System advantages: Save labor cost, improve service image, and most importantly, improve efficiency. How to use the wireless calling system: The calling buttons are placed or attached to the table. When a guest requires service, they press the button. The receiver (LED screen or watch pager) receives the signal with vibration or sound, displaying the table number, so staff know which table needs assistance. Multiple language support for watch receiver: English, Spanish, German, French, Italian, Russian, Ukrainian; customization available upon request. 3 alert modes: Vibration, beep, and light flash; customizable settings. Wireless Call Button Transmitter Specifications: - Call button frequency: 433MHz - Modulation mode: ASK (AM) - Decoding: Learning code - Working current: 17mA - Transmission distance: 100m (open area) Watch Receiver Pager Specifications: - Capacity: Supports up to 500 transmitters - Alert modes: Vibration, beep, ring, or flash - Sensitivity: -110dBm - Frequency: 433.92MHz - Power supply: 250mAh lithium battery - Standby time: Up to (in ideal conditions) - Compatible with 1, 2, 3, 4, or 5 buttons - Upgraded functionality with key value assignment - Extended standby time Note: Due to different production batches, slight variations may occur. Specifications: Button color - Orange Color: As shown in photo Material: ABS Package Contents: 1 x Watch receiver 5 x Call buttons Note: Light reflection and differences in display screens may cause slight color variations between the image and the actual item. Measurement error allowance: +/- 1-3cm.