UENO-mono KABENI Projector Operation confirmed to be good. [Quoted from the internet below] Product Information Size: 1.7cm thick x 7.7cm wide x 14.5cm long Body weight: 220g OS: Android 9 Projection method: DLP Light source: LED Lamp life: 30,000 hours or more Projection size: 6-130 inches Shortest distance / Projection size: 17cm / 6 inches Screen reduction function: Projection area can be reduced to 60% *Invalid when connected via HDMI Wi-Fi: Dual-band 2.4G/5G Bluetooth 5.0 (AirPods compatible) Brightness: 1000 lumens Contrast ratio: 2000:1 Input supported resolution: ~4K (3840×2160) Resolution: Full Wide VGA 854×480 Aspect ratio: 16:9 / 4:3 (selectable in settings) *Not selectable when connected via HDMI Focus adjustment: Manual Keystone correction: Automatic vertical ±40°, manual horizontal ±30°, manual correction of four corners *When connected via HDMI, horizontal and four-corner correction are disabled, so projection from the front is required. Color temperature adjustment: 3 levels (cool/warm/standard) Built-in speaker: 8Ω 1W Battery capacity: 5000mAh Continuous operating time: 2 hours Internal storage: 32GB (5GB used by the system) Memory: 1GB Supported file formats: Video: MPEG-1/MPEG-2/MPEG-4/VP8/VP9/H263/VC-1/MJPEG Audio: MPEG/WMA/WAV/OGG/FLAC/AAC/AMR/MIDI Image: JPEG/BMP/GIF/PNG/WEBP Input terminals: USB 3.0 x 1 / USB 2.0 x 1 / microSD / HDMI / DC x 1 Output terminals: 3.5mm earphone jack Permits and certifications: Technical Compliance Mark, PSE certified (Pass number: JP-2080) AC adapter: 100-240V (can be used overseas)