I accidentally bought two. [Number 1 in cumulative sales in Reiwa] YOWHICK Projector, Ultra-Compact 18000LM High Brightness 5G WiFi & Bluetooth Instant Connection, Real 1080P, Short-Throw Projection [1080P Resolution] Brightness Plus 4K Compatible Home Projector, Keystone Correction, Full HD Home Theater Connectivity Technology: Bluetooth, 3.5mm Jack, Wi-Fi, USB, HDMI Display Resolution: 3840 x 2160 Maximum Display Resolution: 3840 x 2160 pixels High-Speed 5G WiFi & True 1080P & Ultra-Compact Bluetooth 5.3 & 18000LM, 4K Compatible, Ultra-Lightweight] Equipped with Bluetooth 5.3, increasing communication speed, communication distance, and achieving energy saving! Equipped with a HIFI speaker, you can enjoy an overwhelming sense of immersion with realistic, three-dimensional sound, creating a space just for you! With a digital chip and 2 million high-precision micro lenses, the brightness is 17000LM, and the details of light and dark in the image are reproduced naturally, with delicate screen expression. Instead of a TV, you can project a large screen up to 300 inches. It combines compactness and high-brightness image quality. [Built-in HiFi Speaker & Ceiling Mount & 50% Zoom Function] It has a built-in 10W HiFi speaker, so there is no need to connect an external speaker. It has excellent expressive power with powerful bass and clear treble, and you can enjoy a realistic viewing experience in stereo anytime, anywhere, regardless of the location. Conventional small projectors can only be reduced to 75%, but the DP02B mini projector has a 50% zoom function. This allows you to adjust the screen size from 50% to 100% according to your needs. It achieves a long lifespan of over 65000H. Project on the walls or ceiling of your home, and enjoy anime on the ceiling while lying down with your family, a perfect ultra-compact projector for putting children to sleep. You can connect it to a TV tuner to watch TV programs. [Keystone Correction & Wide Compatibility & Convenient Portability Ceiling Projection] The keystone correction function can be easily adjusted to ±15 degrees, depending on the space in your room. It can be connected to various devices such as Fire TV Stick, PC, laptop, DVD player, PS4/PS5, Xbox, TV box, and 3.5mm audio. Connect it to a TV tuner with an HDMI cable to watch TV programs.