As far as I know, the receiver is plugged into an electrical outset. I believe that is 120 Volts, or whatever the standard American outlet is. Expandable & Versatile] - Wireless doorbell systems can be added with more receivers or buttons of the same model to increase coverage. Multiple doorbells can be configured as different bells to let you distinguish front and rear doors where visitors are Intelligent doorbell-- rest assured that you’ll never miss any important guests or urgent deliveries again with the help of this doorbell. Portable Doorbell Receiver: Wireless doorbell has mute mode.This wireless Door bell ringer has 4 Working Modes(A/B/C/D),4 simple ringtone options and 5-level volume selection (0DB-30DB-60DB-90DB-110DB).

Compact Design - Place this kit’s push button and receiver anywhere, and always be notified when a visitor arrives no matter where you are in the house. There are 36 chimes with 3 levels of adjustable ringing volume(High/Medium/Low) from 25-110 dB, you can choose what you like. In addition, there are 3 modes available (Sound/LED Flash/Sound and LED Flash). The LED Flash mode is designed for someone who has a hearing problem or when ringing is not required. is it true that the Bell Receiver relies on 120vac only for power?? This is rather impractical and limits the possible locations available inside. If the Receiver sounds for no reason during the digital code setting. It might have been interfered by other similar Doorbell nearby, just reset the code as instructed in the User Manual. There is a volume button between melody selector and sound-and-flash switch. Press it to adjust the sound volume to be high, medium and low.Notification Modes - Press the Sound-and-Flash Button to set your preferred notification mode. Modes include sound only, LED flash only, and sound and LED flash combined. Notification Modes - Press the Sound-and-Flash Button for your favored notification modes (Sound/LED Flash/Sound and LED Flash) Do remember the LED Flash mode is available when you don’t want to be disturbed Anti-theft Design : The anti-theft doorbell corner mount for most video doorbell, ideal for condo, apartment ,office room. No more worry about your doorbell was stolen. Wanting this for gate at end of driveway. there is no electrical there. is outdoor video doorbell battery operated or does it have to be plugged in?

Reliable Wireless Coverage] - wireless doorbell for home has a range of over 1300 ft in the open area. (Note: do not touch metal closely) Perfect for large homes, flats, offices and classrooms. You'll never miss a visitor or delivery Easy To Install and Use: Use the double-sided tape or the screws (included) to mount the doorbell push button,install the receiver's 3 AAA batteries (included) and press and hold the round ON/OFF button to turn on the receiver,then you can use it normaly. Long Range up to 500ft /150m - Either you are occupied in the garden or kitchen, you will always be easily informed when someone is calling from outside. FCC, RoHS certified Different ringtones - There are 36 different ring tones with 3 levels of adjustable volume (High / Medium / Low) from 25-110dB Selectable Ringtones - Choose from a variety of 36 different ringtones, with 3 levels of adjustable volume (High/Medium/Low) from 25-110dB.Intelligent doorbell: fine workmanship and creative appearance ensure its popularity and practicality. Surface wall mounted for easy installation, 7-inch color monitor ensures you see and speak with all visitors freely!

Press the push button on the doorbell once, a sounding wireless signal will be sent to the receiver. The sound will stop as soon as the melody ends. For repeated sound, press the button again. Hold the button on, the sound repeat stops. Electronic doorbell-- the doorbell with simple and creative design, easy to use and easy to install. Expandable &DIY -You can DIY to meet your requirement by pairing additional receivers and push buttons. 1 Receiver can pair up to 5 Push buttonsElectronic door bell: adjustable volume, you can adjust the volume according to your different needs. IP65 Rainproof & Night Vision】IP65 waterproof design, stable in rainy, cloudy, cold and snowy conditions. Built with 130° wide-angle camera, anti-oxidation aluminum alloy, rainproof, anti-dust and anti-vandalism. IR LED illumination for better night vision. Infrared LED Night Vision, Easy installation - Provides clear vision of visitors even in the darkness of night. Easy 2-wire setup system includes installation materials and 49ft(15m) connecting cable. Save Videos and Photos - Videos and photos taking from the outdoor doorbell will be stored on the inserted SD cards or the monitor’s internal memory for later viewing. (Note: Saving video requires an SD card, up to 32GB, a 1GB SD card included);