1、Stable and Reliable: Adopting high performance wireless technology, stable and reliable. Applicable to a variety of places, meet the needs of large scale use, paging effect is remarkable. 2、Compact and Portable: Wireless calling system adopts fashionable design, novel appearance, compact and portable, easy to move and carry. 3、Digital Display: Display the time of the year, month and day, accurate and convenient. Convenient to record the call time, improve work efficiency. 4、Multiple Application Scenarios: Wireless restaurant pager system is suitable for various places such as home, hotel, bar, restaurant, factory and so on. 5、IPX4 Waterproof: Caregiver pager call button supports IPX4 waterproof rating, high sensitivity receiver, reliable and durable. Item Type: Wireless Calling System Model SU‑620 Receiver with Display: Operating Frequency: 433.92MHz Size: Approx. 210x140x30mm / 8.3x5.5x1.2in Material: ABS Receiving Sensitivity:‑105dB Decoding: Learning Code Waterproof Rating: IPX4 Operating Temperature: ‑20℃ to 60℃ Button Transmitter: Operating Frequency: 433.92MHz Material: ABS Battery Type: Lithium Battery Battery Type: 2 x CR2032 Battery Battery Capacity: 240mAh (included) Transmit Current: 10±3mA Standby Current: <1uA Open Distance: >200 Meters Keystroke: 1 Million Times Waterproof Rating: IPX4 Operating Temperature: ‑20℃ to 60℃ Double Key: CALL, CANCEL 10 x Table Pager 10 x Stickers 1 x Power Adapter 1 x Receiver 1 x Instruction Manual