Charging precautions: 1. first of all, it is recommended to use the phone's original charging head, 5V or 2A (the kind of very small charging head, is ¡Ü5V or 2A, that does not work) 2. USB power supply cable, must use the product comes with a USB power supply cable, which is very important. 3. even if the phone, as far as possible is also recommended to try to use the original phone charging cable. Specifications: Projection size: 14-100 inches Standard physical resolution: 320x180p Supported resolution: 1920x1080max Lumens: 15 ¡À 3ans lumens Light source: LED, 30000 hours service life Projection technology: LCD Working voltage: DC5V Working current: 2A Power: 10W Remote control: panel keys Headphone output: audio output, 3.5mm connector output Appearance size£º110x47mm Color box size£º147x135x72mm Features: 1. [Eyes protection] With the portable mini projector, children can stay away from mobile phones, iPad, and other electronic products, ideal for playing games, watching videos, listening to music, and studying. 2. [Small and portable] small size, easy to carry, can be used everywhere. 3. [COMPATIBLE MULTIPLE DEVICES] compatible with Fire TV Stick or Earphone or USB Disk or Games or Camera or Phone or Tablet or PC or Amplifier. 4. [Same screen] Mobile phone with the same screen: support mobile phone data cable with the same screen. 5. [100-inch projection ] Only 4m can up to 100 inches. 6. [High service life] High definition lens 30000 hours lamp life. Package includes: 1x Home mini projector 1x USB power cable 1x Instruction manual