300m Range Smart Digital Wireless Doorbell

Description: 1. Strong penetration performance, the receiving distance can be up to 200 meters from the air to the ground (Note: The actual receiving signal varies depending on the environment, and the signal is different due to different obstacles) 2. 4 levels of volume can be adjusted, 36 music can be selected. The receiver has an indicator light. 3. No need to plug in, both receiver and transmitter use batteries. The transmitter has built-in battery, and the receiver uses 3 AAA batteries (AAA batteries not included) 4. Easy installation: it can be fixed with screws or double-sided tape. When using double-sided tape, please press for 30 seconds and then let go, it is not easy to fall off. 5. Scope of application: Home, commercial, residential areas, office buildings, hospitals, restaurants, factories and other places Specification: Working range: 300M Music selection: 36 ringtones Volume selection: 4 levels of volume adjustable voltage: Transmitter: use a 12V23A battery (bui