Key function: 1. Upgrade contents of the memory card (or Built-in memory) by simply inserting an USB flash drive. 2. Timer function: the player turns on/off at the same time everyday according to your setting. 3. Function keys on the player can be disabled or enabled. Main function: 1. Play mp4 advertising video, mp3 music and digital photos; Built-in 22 inch TFT LCD screen, with tempered glass protection; easy-to-install on supermarket shelves, tabletop, showcase and lift, etc.; Plastic casing. 2. Play from: --Compact Flash card (CF card) --USB flash drive --Built-in memory. 3. Upgrade contents of the memory card (or built-in memory) by simply inserting an USB flash drive, no need to take out of the memory card. 4. Timer function: the player powers on / off automatically everyday at the time pre-set; It can also automatically play and non-stop replay within the pre-set time frame . 5. No DVD style mechanical movement, hence more durable and suitable for long-hour advertising playing 6. 7 function keys on the players, they can be turned on/off 7. Theft-protection device effectively prevent the player and CF card from being stolen in public place 8. Audio output: 2 built-in high quality stereo speakers 9. With professional easy-to-use stand set; hang on wall or stand on table Technical specifications 1. TFT LCD screen: Size: 22 inch Resolution: 1680 * 1050 Brightness: 300cd/m2 View angle: left / right 80íp, up /down 85íp Contrast: 1000 : 1. 2. Compatible file formats: Picture formats: BMP/JPG/GIF Audio formats: MP3/WMA Video formats: MPEG1(VCD), MPEG2ú¿DVDú¬, MPEG4. 3. Play from: Memory flash: CF card Built-in Flash memory: (optional) USB drive: high speed USB 2.0 (Host & OTG). 4. Output: Built-in loudspeaker power: 2 x 2W. 5. Others: Casing material: Plastic (ABS+PC) Installation: shelf/wall-mounted or to be installed on desktop Power supply: DC12V, 48W Dimension(mm): 630 (L) X 340(W) X 65(H) net weight:app. 6kg Working temperature: 0íµ - 40íµ Working humidity: 20% - 80% Storage temperature: -20íµ-60íµ Storage humidity: 10%-95%. 7kg/pcs.