The LUNAVO wireless smart video doorbell is a voice intercom equipped with advanced features. It offers night vision and a detection angle of 166 degrees, ensuring effective monitoring of your entryway. This product requires the use of three 18650 batteries, not included, for its power supply. It is compatible with 2.4 GHz WiFi and can be charged via USB. The dimensions of the intercom are 19x10.5x4.5 cm, and it is made of ABS, weighing approximately 0.4 kg. The main color is black. The maximum transmission range is 10 meters, and the sound volume is adjustable up to 48 dB. This device is designed to be mounted using adhesive and is intended for unisex use. It allows for remote opening and is connected for real-time monitoring via a mobile phone. The product comes with a 2-year warranty. Please note that this product does not include a battery, and you must provide the necessary batteries yourself.