General description The Wireless Doorbell is a versatile and reliable solution for your home, office, or shop. With a transmission distance of up to 150 meters in open space, it ensures you never miss a visitor. This doorbell features 58 melodies and 4 adjustable volume levels, reaching up to 90 dB, making it suitable for various environments, including apartments and houses. Its IP44 rating provides protection against water and dust, ensuring durability in harsh weather conditions. Technical specifications Item Type: Wireless Doorbell Material: ABS Power Supply (Receiver): AC110-240V 50/60Hz Power Consumption: 0.25W Transmission Distance: Open Space > 150M RF Frequency: 433 MHz Ambient Temperature: -10℃ to +45℃ Ring Volume: ≥90dB Volume Levels: 4-Level Adjustment Installation Plug the receiver into a power source. Fix the transmitter on the wall using the accompanying sticker. No wiring or battery required. Usage Can be used as a doorbell or pager. Ideal for various scenarios,