Premium Materials: This mini LED projector is made from eco-friendly ABS material, odorless and pollution-free, protecting the health of you and your family. Same Screen Function: IOS and Android phones and tablets can be connected with the device's charging cable, eliminating the need for a separate phone adapter cable. Built-in Speaker: The pocket cinema projector has a built-in 4Ω 2W speaker for clear sound. External headphones and speakers are also supported. Mobile Power Support: This home theater projector supports mobile power, allowing you to watch movies anywhere, anytime. Eye Protection: The home theater projector uses diffuse reflection technology to protect children's eyes. Contrast Ratio: 3000:1 Resolution: 320 x 180 Maximum Resolution: 1920 x 1080 Lamp Life: 30,000 hours Projection Distance: 0.6-4.0 m/2.0-13.1 ft Projection Size: 14-100 inches Speaker: 4Ω 2W Note: The product must use a standard 5V2A charging head, otherwise it will not work.