Small and Compact: Measuring only 12.6 x 8.5 x 4.7 cm, this mini projector is almost as big as your projector. Suitable for home entertainment in dark conditions only. Not recommended for PowerPoint or business presentations. Comes with built-in speakers, but does not support Bluetooth. Powered by external battery: The mini projector does not have a built-in battery, but requires a 5V or 2A power source such as a wall charger or power bank. Perfect for traveling, hiking and camping without electricity or TV. It's also very popular with kids. Compatible with Multiple Devices: ARC or USB or AV or SD slot allows this mini projector to work with smartphones, laptops, tablets, DVD players, Switch or PS4 or XBOX, Fire TV Stick, Chromecast, USB flash drives , Connect Mirco SD and audio devices, and more. Image power: 800 lumens Native resolution: 480x320 pixels Maximum supported resolution: 1080P Aspect ratio: 4:3 or 16:9 Projection distance: 1-3m Projection size: up to 60 inches. Note: May not be compatible with Dolby Video sound! Suitable for beginners, not for professional users! Connection: To connect to your smartphone, tablet, or laptop, you may need a Lighting to ARC cable, Micro USB to ARC, or Type-C to ARC, depending on your device. If you want to connect it to WiFi, you will need a WiFi adapter (not included).