Домашний двойной подключаемый передатчик беспроводной США штекер простая установка портативный кнопочный водонепроницаемый беспроводной дверной звонок набор приемник Музыка

Features:
The patient, the elderly, and the mobility are inconvenient, just tap the doorbell button to notify the family.
The outer casing is preferably processed with ABS resin material having multiple properties.
Built-in high-quality large-diameter speakers, the sound is crisp and bright.
52 chord music ringtones.
Specifications:
Material: ABS
Color: white
Plug: US
Working voltage: A C 100-240V
Wireless frequency: 433MHz
Working temperature: -10 °C -50 °C
Wireless distance: about 330 meters (no interference in the open space)
Waterproof: yes
Receiver size: about 72x72x17mm
Transmitter size: about 83x34x19mm
Package Included:
2 PCs x Doorbells
1 PC x Button
Note:
1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 0.5-2 cm differences due to manual measurement.