Specifications:

• Brand Name: LVGESS
• Certification: CE
• Certification: FCC
• Certification: RoHS
• Doorbell Type: WireLess
• Hign-concerned Chemical: None
• Item Name: Wireless doorbell
• Model Number: WHM05
• Operating temperature: >-10°~+45°C
• Operating voltage: AC 100-230V
• Origin: Mainland China
• Power consumption: 0.25w
• Power Source: Self-powered
• Ringtone volume: >50dB/1m
• Transmitter: no need battery Kinetic Self-Powered
• Type: Doorbells
• Wireless distance: 150 meter(open space)
• Wireless frequency: 433 MHz