Wireless Digital Doorbell with 38 Ringtone Chord Music 300m Range Easy Install for Home Office Enhanced Signal Long Battery Life 8 Volume Control Transmitter Receiver

Home Wireless Doorbell AC Digital Music Doorbell One Tow Pager Remote Control Doorphone
Features:
38 chord ringtones with 7-color light : choose a unique ringtone, the sounds good with 7-color light , not losing a piece of home art.
Open space 300 meters : wall transmission distance 20-50 meters, strong penetration open space without interference up to 300 meters.
Press the button to to remind: press the button to the encrypted signal to to receive the signal to sound to remind without any network.
Easy to install: the key can be directly affixed to the distribution of strong double-sided stickers, without wiring; indoor ringing host directly in, installation-, maintenance-.
8-step volume: up to 100dB, three rooms and one hall, no dead space, the elderly and children can hear.
combination: transmitter and receiver support flexible pair , can be arbitrarily paired - a transmitter + multiple receivers / multiple transmitters + a receiver.
Product Description:
Power consumption 0.5 (W)
Power supply plug-in
Includes: 1x button 1x ringer 1x double sided tape 1x manual
Button
Power supply: 12V23A alkaline batteries
Transmitter power consumption: Battery life: 20 times a day estimate, about 1-2 years
Wireless Distance:300 meters in open space, 20-50 meters indoors including obstacles
Operating Temperature:-20-60°C
Transmission Frequency:433.92MHZ
Ringing
Power supply:AC100-240V50HZ/60HZ
Volume adjustment: 8 of volume adjustment
Music Adjustment:38 chord music
Volume range: 25-85dB ( meter 0.5 meters test)
Working environment: Humidity Operating Temperature:-10-60°C
Receiving frequency:433.92MHZ