CRONY RL-3971 Wireless doorbell Wireless Door Chime electric cooler all synchronized with Audio

all synchronized with Audio

Characteristics of the system device:

tablet or smartphone with associated diagnostic procedures

This clock is equipped with a bright backlight so the numbers can be seen clearly even in a bright room

CRONY RL-3971 Wireless doorbell Wireless Door Chime electric cooler all synchronized with AudioFeatures: One million sets of non repeated operation password to ensure interference free operation. You can select 16 different sounds yourself by pressing the red button of the remote control. Maximum remote control distance of up to 300m free to air. Take your door chime with you around the garden and avoid missing visitors. No wiring required, simple to install. Specifications: 1. Transmitter: Voltage: DC 3V (CR2032) Quiescent Current: 1uA Working