Can be used even without a Wi-Fi environment. New, unused This is an intercom with a camera. Easy installation with screws or double-sided tape, no wiring required ♫ Rechargeable and cordless You can see the face of visitors, so it's great for sales, solicitation, and crime prevention! The monitor can be fixed or carried around! The doorbell's battery lasts for about 4-6 months in standby mode, so you don't need to charge it frequently. Furthermore, Bluetooth connection means no internet connection, wiring, or drilling is required. Easy to set up and use. [Automatic Photo Shooting and Built-in Storage] When the doorbell rings, the TV doorphone automatically takes high-resolution images, providing clear images of visitors. It also has built-in storage, so you can save records of visitors. [Clear Night Vision] Equipped with LED low-light scene assist lights, this doorphone ensures clear visibility even at night. Also, to keep shipping costs as low as possible and offer it at a lower price, we will take the product out of its original box and ship it in a different box. Thank you for your understanding.