DIGOO DG-SD10 Self-powered Waterproof Doorbell 58 Melodies Door Bell
IP44 Waterproof – Reliable & Durable in Use. Strong Signal Receiving and Penetrating Power – Up to 180m powerful transmitter distance in open area. The outdoor transmitter has padded the pressing test more than 200000 times, which ensure your long time use.
DIGOO DG-SD10 Waterproof Doorbell is self-powered / No batteries. Converting the energy from finger pressing into electricity, then transmit wireless signal. The Transmitter Self-powered; Industry Unique Sliding Button; IP44 Waterproof; 58 Melodies and 4 Levels Volume Adjustment.