Notice : This mini projector don't support Dolby Audio, so if your video built-in Dolby Audio, there maybe don't have sound when play it. please don't worry and don't dispute it, you can have a try some other format video.

Model: T300 
Display type: LCD 
Native Resolution: 320 x 240 
Resolution Support: 1920 x 1080 
Brightness: 1400 Lumens 
Contrast Ratio: 800:1 
Throw Ration: 1.4:1 
Projection Distance: 1.2 – 3m 
Image Size: 20 – 80 inch 
Image Scale: 4:3 
Interface: HDMI,USB,3.5mm Audio,TF Card Slot 
Aspect Ratio: 4:3 
Certificate: CE,RoHs,FCC 
Color: Yellow 
Lamp: LED 
Bluetooth: Unsupport 
Picture Formats: BMP, PNG, JPEG
Video Formats:MP4,RMVB,AVI,RM,MKV,etc.
Audio Formats: MP3, WMA, OGG, AAC, FLAC, APE, WAV 

AC Adapter input : 100-240V  50/60Hz  2.0A

Built-in Speaker: Yes 
Noise (dB): 24 
Compatible with: Sony PS4,Xbox 
Lamp Life: 30000 hours 
DVB-T Supported: No 
External Subtitle Supported: No 
3D: No 
Tripod Height: not included 
Product weight: 0.2450 kg 
Package weight: 0.6100 kg 
Product size (L x W x H): 12.50 x 8.50 x 4.50 cm / 4.92 x 3.35 x 1.77 inches 
Package size (L x W x H): 19.50 x 17.50 x 8.00 cm / 7.68 x 6.89 x 3.15 inches 
Package Contents:

1 x YG300 Pro Mini Projector, 1 x Remote Control, 1 x AV Cable, 1 x English Instruction Manual

Notice : there maybe don't have sound when play some format video. like MKV etc, please don't worry and don't dispute it, you can have a try some other format video, you know, there are so many different format video.