Very light. Held about ~1300 songs as max memory cap. Inserting an additional memory card does not stack onto the playlist. for example. If you have 300 songs in an external memory card. you cannot shuffle them all with the internal memory card. you have to keep switching back and forth between internal and external memory for music. When the device goes to sleep mode and you have to wake it up from the power button. You have to go through each artist and song one my one if you are searching. holding the up and down button while trying to scroll through data, navigates the volume. So you seriously have to keep clicking up and down 1 at a time. But for $30 its pretty good, just treat it like the shuffle.