10 Pagers Restaurant Pager System Round Wireless Pager Set Wide Voltage 100‑240V US Plug Item Type: Restaurant Pager System Weight: 1065g / 37.57oz Material: ABS, PC Keyboard Size: Approx. 12x7.5x2cm / 4.7x3x0.8inPager Size: Approx. 8x7.5cm / 3.1x3inBattery: DC3.7V lithium ion battery 200mAh (receiver shipped with built in battery) Applicable Frequency Band: 433MHz Use of Power: DC12V Quantity: 10 Pcs Transmitting Distance: 500 meters open area Standby Time: 20 hours Number of Pairs of Codes: 999 Prompt Mode: Vibration, beep, light flashing Suitable For: Restaurants, bars, cafes and other places that need to queue How e:I. Set the keyboard ID [F1] (1‑999) 1. Press the setting key on the keypad, the digital tube will display "F1". 2. Press OK key to enter, the screen will show "0". 3. Press the numeric key to change the display number. 4. When the setting is finished, press OK to save and return to "F1" automatically. Note: The ID number must be changed to match the food tray again before use. Set the extension number [F2] (1~999) 1. Press the set key on the keyboard, the digital tube displays "F1". Press upward key once, the digital tube shows "F2". 2. Press the OK key to enter, the screen will show "0". 3. Press the numeric key to change the display number. 4. Remove the extension that is charging, press the OK key within 5 seconds, the extension will flash + beep to indicate successful code matching. 5. After the code matching is completed, automatically return to F2. Note: The plate number can be set to any number from 1‑999, or multiple plates can be set to the same number. The rest refer to the manual