Wireless solar-powered doorbell, electronic, effective range of 100 meters, 4 volume levels, 52 ringtones, white.

Energy-efficient solar power: The transmitter is powered by solar energy and requires no batteries, making it durable and maintenance-free.

Long range and strong penetration: Effective range of up to 300 meters in open field. The signal easily penetrates walls, doors, and other obstacles, making it ideal for large homes or offices.

Blue LED indicator: The built-in LED indicator flashes when the alarm sounds, making it easy to use for the hearing impaired or in noisy environments.

52 ringtones and 4 volume levels: A wide selection of ringtones is available, with up to 4 adjustable volume levels to suit your needs.

Flexible multi-device connectivity: One transmitter can be paired with multiple receivers, and vice versa, providing wide coverage and adaptability to different setups.