TurboRobot
Intelligent Wireless Doorbell
$22.99
Specifications:
38 ringtones to choose from and 3-step volume control (0 ~ 85dB)
Eye-catching backlight flashes when someone pushes the doorbell. Particularly suitable for the elderly, deaf, and pregnant women
Uses machine-learning to prevent interference from other wireless transmitters Designed to last up to 25 years
Working frequency: 433 MHz
Receiving distance: 300M (in open area)
Transmitter size: 75 × 51 × 20 mm Receiver size: 95 × 65 × 24 mm
Receivers Rated voltage: AC 110V-220V -240V
The transmitter 12V23A battery factory pre-installed (battery not included)