1、1 Receiver 10 Pagers: The wireless call system is equipped with 1 watch receiver and 10 calling pagers, with vibration, beep, and flashing prompts, as well as perpetual calendar display. 2、Built in Battery: The receiver has a built in 250mAh lithium battery, and each button caller has a 240mAh capacity lithium manganese battery, ensuring long endurance. 3、Call Record Saving: Built in 33 kinds of call instructions, can be freely set, support permanent storage of call records, it will not be lost even if the power is off or the factory is restored. 4、Simple Operation: The watch receiver adopts a LCD screen display with user friendly menu operation, which is convenient and practical, suitable for different usage scenarios. 5、High Efficiency: The working frequency of the button pager is 433.92MHz, with an open distance of up to 200 meter, widely used in restaurants, tea houses, and other places. Item Type: Wireless Calling System Material: ABS Watch Receiver Parameter: Pager Connection Capacity: 500 Alert Methods: Vibration, Buzzer, Flashing Receiving Sensitivity: -110dbm Call Information Storage Capacity: 20 Sets Battery Type: Lithium Battery Battery Capacity: 250mAh (included) Standby Time: 7 Days Button Pager Parameter: Operating Frequency: 433.92MHz Battery Type: CR2032 Lithium Manganese Battery Single Pager Battery Capacity: 240mAh (included) Transmitting Current: 10mA±3mA Standby Current: <1uA Open Field Distance: >200m / 656.2ft Button Lifespan: 1000000 Times Waterproof Rating: IPX4 Operating Temperature: -20℃-55℃ 1 Button: Call 1 x Watch Receiver 10 x Calling Pager 1 x Charger 1 x Charging Cable 1 x User Manual