Functionality: 1. DUAL FAN: The mini projector has a built-in dual heat sink for efficient heat dissipation, effectively improving the cooling effect. 2. LOW NOISE: This high definition projector has a low decibel operation, allowing you to have a good time. 3. LED LIGHT: Adopt independent light machine and LED reverse light source system, improve the quality of light source, reach a lifespan of 30,000 hours. 4. FULL INTERFACE: The portable projector has full interfaces such as HD and USB multimedia interface, supports U disk, DVD, computer, etc. 5. BUILT-IN SPEAKER: The movie projector has a built-in speaker, supporting connecting headphones and speaker, allowing you to enjoy cinema-level sound effects. How to use: Connect the power supply and signal input to use. Specification: Item Type: Projector Material: ABS Projection technology: TFT LCD LED Life: 30,000 hours Scale Correction: Manual Colour: 17.2 m Contrast: 3000:1 Speaker: 4Ω 3W Projection distance: approx. 0.5-4 m/19.7-157.5 inches Input Port: USB HD AV Multimedia Interface Output Port: 3.5mm Headphone Overall Power: 30W Adapter: 15V 2A. Remote control battery: 2 x AAA batteries (not included) Voltage: 100-240V Package List: 1 x adapter. 1 x AV cable. 1 x remote control. 1 x user manual (English language not 1 x Projector