Unused items from my home. I am selling this because I have no plans to use it. Although it is new and unused, it has been opened for photography and to check the contents. Retail Price: ¥21,999 Brand: BSJ Product Name: Pet Door, Opening Size 34 x 25.4cm, Cat Door, Entrance/Exit for Small Dogs, Features Radar/Timer/Light Sensor Modes, Solar & USB Charging, Durable Aluminum Construction, Weatherproof Design, All-Weather Use, Suitable for Small Pets Under 20kg, Black 【Instructions for Use】First, connect the solar panel. Press the white switch on the back, and the green light will illuminate, indicating normal power supply. Test the automatic pet door with the switch button or remote control to ensure smooth operation. When using USB power, this automatic cat door does not have a built-in battery, so keep the cable connected at all times. 【Multi-Functional Operation Modes】The cat door for windows supports four flexible opening and closing methods: 1. Radar Mode: Detects movement within 0.5m and automatically opens and closes; 2. Light Sensor Mode: Operates at sunrise and sunset; 3. Timer Mode: Customize opening and closing schedules; 4. Manual Mode: Operate directly with the remote control (20m range) or the button on the pet gate with the cat door. It is the ideal cat door to meet all needs. 【Solar Charging & USB Charging】The BSJ solar cat door system is equipped with a 6000mAh battery, a high-efficiency solar panel, and a Type-C charging port. Combining solar power generation and USB charging, this automatic cat door achieves all-weather continuous operation without frequent battery replacement. Note: The main unit does not have a built-in battery. 【Wider Door Size】With an opening height of approximately 34cm and a width of approximately 25.4cm, the automatic cat door provides more space than standard pet door models on the market. Cats and other small to medium-sized pets can pass through comfortably, allowing all pets to easily come and go. 【Durable Construction】Made of high-quality aluminum alloy and PVC, this solar-powered outdoor cat door is weather-resistant and corrosion-resistant, with a long-life design. It can withstand temperatures from -15°F to 140°F (approximately -26°C to 60°C), and its sturdy construction blocks predators such as raccoons and foxes. Provides 24-hour safety for your pet. It has a robustness that sets it apart from conventional cat doors.