1. Good communication quality: Wired doorbell and electronic doorbell have bright sound quality and clear images, which enable indoor residents to know the situation outside the door timely and clearly and facilitate communication. 2. Wide compatibility: Both wired doorbell and electronic doorbell can be connected with various intelligent devices (such as mobile phones, tablets, etc.), and can check the dynamics of the door at any time through the APP to realize remote wireless operation. 3. Simple installation and operation: the doorbell design sold by is simple. Whether it is wired doorbell or electronic doorbell, users can install and operate it according to clear instructions, which is very convenient. 4. Multifunction: in addition to the basic functions of photographing, video recording and voice intercom, the doorbell also has functions such as motion detection and infrared night vision, which can protect the house and guard against theft all day long and in all directions. 5. High cost performance: the wired doorbell and electronic doorbell sold by both have high cost performance. In addition to the above advantages, it also provides long-term after-sales service, which is a value for money choice. 1.Material: Plastic 2.Color: White 3.Power:3W 4.Source Voltage: DC 12V 5.Wired door bell 12V for security access control 6.Connect to DC 12V power directly 7.Switch is not included 8.Volume of doorbell: 90db 9.Working Voltage: DC12V 10.Red to 12V(+), Black to GND(-) 11.Features a bell sound, small size and wall-mount hole, very easy to install