KYTGFH Wireless Doorbell Waterproof, 1 Transmitter 4 Receivers Self-Powered Doorbell, 120M Transmission Distance/3 Files Sound Adjustment/Led Flashing Light Reminder/48 Music

Smart home doorbell Working range: 120M Music selection: 38 ringtones Volume selection: 3 files volume adjustable size Dimensions: Transmitter: 77*45*25MM Receiver: 95*55*25MM Scope of application: family commercial residential areas, office buildings, restaurants, factories, etc. The measurement is manual measurement, the error is normal, please allow 2-3cm difference, depending on the actual object. Non-professionals should not open the repair without authorization, so as not to damage the delicate electronic components. Please try to avoid putting the product in rain, long exposure, and close to metal objects. Proper use of this product can effectively extend the service life. The actual remote control distance will vary depending on the environmental factors used.