[US Plug]

Feature:
1. Self Generating Wireless Doorbell: No wiring, no battery, one press to convert energy into electric energy, transmitting wireless signal, no need to worry about changing the battery for the doorbell.
2. Long Distance: Two transmitters and two receivers design, can be used in double door and houses, and can set a separate corresponding ringtone. Strong penetrating power, signal pairing, not worry about connecting with the door.
3. Multiple Function: Not only a doorbell, but also a pager. When a baby and the elderly sleeping alone, and pregnant women need help, they can press it, effectively your family.
4. Sound Light Alarm: When the receiver receives a signal, the sound and light will alarm, convenient for the elderly and patients with ear diseases. 58 songs, 4 volume can be adjusted to solve the problem of volume.
5. Durable Material: Self powered wireless doorbell with fire retardant shell, black round appearance, beautiful and fashion. IP44 grade sunscreen and waterproof, effectively prolong the service life.

Specification:
Item Type: Self Powered Doorbell
Material: ABS
Application: Home, shop, office doorbell or pager
Plug Voltage: AC110-240V
Type: 2 Transmitters and 2 Receivers
Color: Black
Transmitters:
Power Source: Self Generated
Appearance Size: Approx. 63x63x20mm/2.5x2.5x0.8in
Ambient Temperature: -20℃ to +60℃
Transmission Distance: Approx. >150m/164yd (open space)
RF Frequency: 433MHz
Receivers:
Power Supply: AC110-240V 50/60Hz
Power Consumption: 0.25W
Ringtones: 58
Ringtone Volume: ≥90dB
Ambient Temperature: -10℃ to +45℃

How to Use:
Troubleshooting:
1. The doorbell does not sound: Check whether the receiver is plugged in and the socket is powered on.
2. Short transmission distance: Metal objects such as iron doors and iron frames will affect the effective transmission distance. Avoid placing the transmitter and receiver near metal