Wireless Doorbell 150m, Waterproof, Battery-Free

Wireless Doorbell with Thermometer and Hygrometer

The RETOO E778 wireless doorbell is a practical solution for homes, apartments, offices, or country houses. The device operates without complicated wiring, allowing for quick installation and immediate use. An operating range of up to 150m in open space ensures the doorbell can be heard from various rooms in the house. You can choose from 38 melodies, and the volume can be adjusted up to 100 dB. Its black, minimalist design easily blends with various exteriors and interiors.

Wireless Doorbell with 38 Melodies

The doorbell receiver plugs into an electrical socket, and the transmitter can be attached to the door or another chosen location. No drilling walls or laying cables is required, making installation convenient for both owned and rented properties. The transmitter's construction is splash-proof and dust-resistant according to IP44 class, making it suitable for outdoor use in a location protected from direct heavy water exposure. The screen displays the time, temperature, and humidity, so the doorbell serves not only as an announcement device but also provides information.

Kit Contents

The kit includes the main elements needed to install and use the wireless doorbell. The transmitter is mounted on a chosen surface, and the receiver is connected to the electrical network.

• Wireless transmitter
• Receiver
• User manual

Convenient and Functional Doorbell

Four-level volume adjustment allows you to choose the appropriate sound intensity according to your needs. 38 melodies help avoid monotonous ringing, and a loud signal is useful in larger homes or for people who prefer not to have a sharp, intrusive sound. The doorbell can be especially useful for families with pets that are sensitive to loud noises. The 433.92 MHz operating frequency ensures convenient daily use.

Advantages and What to Consider

• Advantages: wireless installation without cables; up to 150m operating range in open space; 38 melodies; volume up to 100 dB; IP44 splash protection; screen displays temperature, humidity, and time; modern black design; CE conformity certificate.
• What to consider: actual operating range may depend on walls, floors, and other obstacles; the transmitter is recommended to be installed in a location protected from direct precipitation; the receiver requires an electrical socket.