The NM-105 mp3 player from Naxa includes the following features: Digital MP3 Player. Slim Compact Design. Built-in PLL Digital FM Radio. LCD Display with Colored Backlight. USB Plug Adaptor. Format: MP3/WMA/WAV. Built-in Voice Recording (Built-in Mic). Preset Equalizer. Electronic Volume Control. 4 GB Built-in Flash Memory. Requires one AAA Size Battery (Not Included). Multiple Language OSD. USB Cable. Stereo Earphones. Naxa develops the finest quality consumer electronics products that embrace the latest technological innovations guaranteed to provide consumers years of personal entertainment pleasure. Naxa creates contemporary and ergonomic product designs that can blend in with any room design or work environment, be displayed with pride of ownership, and cater to all tastes.