Product description connect the TV BOX with your 4K TV first, and then the 4K resolution option will show in resolution setting. Note 2: The remote controller of the product belongs to the attached and functional accessory. If part of the product functions can’t be controlled by the controller, please purchase an external mouse or air mouse to operate. You will have a better user experience. Highlights: OS: Android 9.0 CPU: Amlogic S905X3 64-bit Quad core ARM Cortex-A55 CPU GPU: G31 GPU RAM & ROM (Optional): 2GB DDR3+16GB eMMC 4GB DDR3+32GB eMMC 4GB DDR3+64GB eMMC TF Card Supported: Max. 64GB WiFi: IEEE 802.11 a/b/g/n/ac, 2.4G/5G dual-band WiFi BT: 4.2 LAN Ethernet: 10/100M UHD: HD 2.1, support HD CEC, Dynamic HDR and 8Kx4K 24fps max resolution output HDR: HDR10 & HLG Decoder Format: VP9 Profile-2 up to 8Kx4K 24fps, H.265 HEVC MP-10 L5.1 up to 8Kx4K 24fps, AVS2-P2 Profile up to 4Kx2K 60fps, H.264 AVC HP L5.1 up to 4Kx2 30fps, HD MPEG1/2/4, RealVideo8/9/10… Video: Supports mkv, wmv, mpg, mpeg, dat, avi, mov, iso, mp4, rm and jpg file formats Audio: Supports MP3, AAC, WMA, RM, FLAC, OGG and programmable with 7.1/5.1 down-mixing Image: HD JPEG, BMP, GIF, PNG, TIF Language: English, French, German, Spanish, Italian, etc. multilateral languages Specifications: Model Number: A95X F3 AIR I/O Interfaces: 1 * HDTV, 1 * USB 2.0, 1 * USB 3.0, 1 * TF Card Slot, 1 * AV Output, 1 * OPTICAL, 1 * RJ45, 1 * DC IN Power Supply: DC 5V/2A Color: Black Main Item Size: 10.4*10.4*2.5cm/4.09*4.09*0.98in Main Item Weight: 123g/4.33oz Package Size: 20.1*12.7*5.5cm/7.91*5.00*2.16in Package Weight: 421g/14.84oz Packing List: 1 * A95X F3 AIR TV Box 1 * Power Adapter 1 * IR Remote Control 1 * HD Cable 1 * User Manual (English)