Note: This item comes with , please confirm the voltage of your area before purchasing. Description Are you looking for a professional, yet electronic smart doorbell? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? , ! Our professional smart doorbell must meet you needs. It is one of the for you. Features - Color: Black. - Material: ABS. - Size: 8.20X6.30X5.00cm/3.22X2.48X1.97inch. - Receiver voltage range: -230V. - Receiver operating temperature: -20 degree centigrade-55 degree centigrade. - Transmitter voltage range: 12V23A battery power supply. - Transmitter working temperature: -20 degree centigrade-65 degree centigrade. - Acceptance distance: 300 meters in a straight line. - Ringtones: 45 polyphonic music. - Volume: 0-110db (4 levels of volume can be adjusted). - Transmitter waterproof level: IP44. - : . - Just the mini receiver into a socket and fix the transmitter on a wall with the accessories provided. - 1 -in receiver included; will not interfere with other equipment in your home or those of your neighbors - Ultra-low power consumption, withstands various harsh weather conditions - Convenient and easy-to-use design for an enhanced user experience - Rest assured that you’ll never miss any important guests or urgent deliveries again with the help of this doorbell Package list: 1 x doorbell transmitter 1 x doorbell receiver