AOSU V8S video doorbell set with built-in battery and converter. This is a used item, purchased new on Amazon and used for just under a year. It has 8GB of built-in memory, making it convenient to review recordings. I am selling it because I no longer need it due to moving. There are no particular damages or malfunctions. The charging port cover is slightly discolored from the sun, but I consider it to be within normal range. Photo 7 shows an actual shot, and the camera's image quality is also fine. The converter is for the intercom's constant power supply and was installed by a professional. It is included in the sale. Installation may be a bit difficult unless you know what you're doing. It's not necessary if you're using the battery. The constant power converter (low voltage type) allows the main unit to be powered, eliminating the need to remove and charge the unit periodically. Please ask any questions you may have, and I will answer them to the best of my ability! The accessories are all shown in the photos. ・List of accessories Separate converter x1 Main unit (outdoor unit) x1 Main unit (indoor unit) x1 Instruction manual x1 Mounting kit x1 Mounting kit angle adapter x1 Long screws (new, unused) x4 Short screws (for fixing the main unit) x5 Installation positioning card (new, unused) x1 Charging cable (new, unused) x1 Main unit removal pin x1 Wire thingamajig (new, unused) - I'm not sure what it is Compared to domestic video doorbells like Panasonic, it is more affordable and has more features, such as: ① Very clear image quality (5 million pixels) ② Infrared night vision and human detection sensor, automatically records and records even in the dark (→ can be used as a security camera) ③ Notifications and calls can be made to your smartphone in real-time while you are away ④ Ultra-wide angle (166 degrees, 100 degrees up and down) field of view, waterproof ⑤ Can be linked with Amazon devices for viewing and calling on a large screen ⑥ 8GB of memory is built-in, allowing you to review recordings etc. Please refrain from purchasing if you are sensitive to used items. Will be bubble-wrapped and shipped quickly. Smart intercom Doorbell IOT home appliance