Fashionable craftsmanship The nondestructive music player is built with a precision CNC aluminum alloy shell that looks elegant, is portable, and resists fingerprints. The scroll wheel allows quick, responsive track navigation, and the menu and keys offer a onekey lock screen function for easy operation. Large capacity expandable memory The M30 player houses a 1500 mAh battery that Fully charges in about 2 hours and delivers up to 25 hours of continuous playback. The M30 has no builtin memory, but includes a 64GB SD card inserted in the player, enabling convenient file management without worrying about memory. Expandable up to 256GB. resolution display The player features a 2.0inch LCD display with a resolution of 320x240. It offers an intuitive, concise UI, clear software operation, and color saturation. The screen can display lyrics and the song title for a smooth viewing experience. HiFi lossless sound quality The lossless music player uses professional audio IC plus dual decoding to accurately reproduce the listening environment. The decoding chip uses WM8965 and TI TI's TPA6530 power amplifier. Supported formats: MP3 (848kHz, 8320kbps), WMA (848kHz, 5384kbps, STD 896kHz), WAV (8192kHz), APE (896kHz ; 8192kHz fast), FLAC (8192kHz, LOL10), AAC (848kHz, 8320kbps, LC), OGG (848kHz), DSD 128 (5.6MHz).