Wireless Calling System 1 Receiver 1 Call Key IPX4 Water Resistant Vibration Buzzer Alert System blue

Feature: 1. RF WIRELESS TECHNOLOGY: The wireless call system utilizes high sensitivity RF technology, support 998 channels, ensuring stable signal and anti interference. 2. FASHIONABLE DESIGN: This wireless calling system features a sleek and modern design, ensuring it complements any environment. It also supports learning codes to adapt to the needs of various venues. 3. RECEIVER WITH RECHARGEABLE BATTERY: Equipped with a built in rechargeable battery, the receiver boasts a long standby time and charging circuit protection, ensuring safe operation. 4. FLEXIBLE COMBINATION OPTIONS: You can set up multiple receivers with one transmitter, or multiple transmitters with one receiver to achieve many to many call linkage. 5. WIDELY APPLICABLE: Suitable for various settings, this wireless calling system is ideal for homes, schools, offices and many other environments, enhancing convenience. Specification: Item Type: Wireless Calling System Receiver: Operating Frequency 433.92MHz Operating Voltage: DC5V Battery Type: Li ion Battery Receiver Battery Capacity: 300mah (Included) Operating Current: 100+-20mA(vibration + Buzzer mode) 75+-10mA(vibration mode) Standby Current:10+-5mA Receiving Sensitivity:-107+-2dBm Decoding:Learning Code Water Resistant Rating: IPX4 Operating Temperature:-20 celsius - 60 celsius Transmitter: Operating Frequency 433.92MHz Transmit Current:10ma+-3ma Standby Current: 1000m 3280.8ft Battery Type: 1 x 23a12v Battery Battery Capacity: 60mah (Included) Keystrokes:1 Million Times Water Resistant Rating: IPX4 Operating Temperature:-20 celsius - 55 celsius Single Key:Call (Call). Package List: 1 x Receiver 1 x Transmitter 1 x User Manual 1 x Charger