Product Information Resolution: 3840x2160 Interface type: USB, HDMI, AV, optical fiber, video, all-in-one card reader slot Hard disk type: built-in flash memory Operating memory: 4GB Operating system: Android 9.0 Number of cores: four cores Video playback format: AVI, VOB, MPEG, WMV, MP4, MKV Audio playback format: MP3, WMA, WAV, OGG, AAC Voice: English Product weight: 0.45 (KG) After-sales service: Three guarantees for shops Packing list: host, remote control, power adapter, HDMI cable, manual Supported formats: MPEG4, AVI, VOB, RMVB, WMA, MKV Subtitle format: txt,ssa,SUB,ASS Player classification: network player Architecture type: A55 Color: 2G+16G, 4G+32G, 4G+64G Product specifications: European standard EU, American standard US, British standard UK, Australian standard AU