Display Size: ＞13.5 Power Source: DC Keystone Correction: None Power Source: DC High-concerned chemical: None Structure: Without display device Projected Dimension: 23.4 inches Weight: 0.38kg Built-in Speaker: no Portable: Yes Optical Resolution: 320*240 Contrast Ratio: 1000:1-2000:1 Bluetooth-compatible: no Zoom: Focus Ansi Lumens: 40 Power (W): 20 Brightness: 1000 Lumens Light Source: LED Certification: CE Certification: FCC Certification: RoHS Use: Entertainment Projector Remote controller included Type: Mini Screen Scale: 4:3/16:9 Input/Output: 3.5mm Earphone Out Input/Output: HDMI Input/Output: TF Input/Output: POWER Input/Output: USB Projection Technology: LED System: Multimedia System Projective Mode: Throwing Projection Distance: 50 - 250(cm) Product size: 135*97*50mm