Advent Wireless Doorbell, Home Call Button, Long-Range E-681PB One-To Relay Model

1. Energy-efficient technology in the buttons, requiring battery replacement only every 2-3 years.

2. 4 adjustable volume levels up to 100 dB for clear and loud sound.

3. Choice of 32 melodies to suit preferences.

4. Strong signal penetration up to 50 meters without interference.

5. Can be paired with an amplifier for extended signal coverage up to 160 meters in open space.

Avoid installing the transmitter on metal doors to prevent signal weakening.

Keep the receiver away from high electromagnetic radiation devices.

Actual remote control distance may vary due to environmental factors.

The data provided is sourced from Advent's factory laboratory and serves as a reference.

All data presented on the webpage, including distances and power consumption, are based on actual tests conducted by Advent's laboratory or third-party quality inspection agencies.

In case of disputes or complaints regarding data accuracy, official documents stamped with Advent's official seal will be provided as legal evidence.

Any product or component comparisons mentioned on the webpage refer to older Advent models, with the final interpretation rights belonging to Advent's factory.

The information provided is based on the details extracted from the user input and is subject to verification and validation.Specifications: