The X7 Mark II is among the first of its kinds in Chinese portable music players to adopt 2GB of RAM, allowing it to seriously multi-task and to provide a more fluid experience. The player also comes with 64GB of internal storage and 2 micro-SD card slots, each supporting up to 256GB expansion cards. This means that the X7 Mark II is able to hold up to a whopping 576GB of music, enough for over 19,000 lossless music files, 30MB in size for each. With the X7 Mark II, you truly don't have to worry about leaving any of your music collection behind, wherever you go. Bundled with the X7 Mark II is the AM3A, an all-new amplifier module with both single-ended and balanced headphone outputs. The high-definition 480*800 in-cell touchscreen of the X7 Mark II is a fantastic feast for your fingers and eyes, and also facilitates easy operation of the device. Despite the X7 Mark II being thinner and lighter than its predecessor, it also packs a bigger, high-voltage fast-charging capable battery - now with a capacity of 3800mAh. And due to support for the popular QC2.0 and MTK PE quick-charging standards, the new X7 charges 2.7x faster than the original model. In merely the time it takes to watch a short movie (1.5 hours), you can fully top off the X7 Mark II's generous battery.