Creative MuVo TX 512 MB MP3 Player 512 MB holds up to 16 hours WMA or 8 hours MP3 music Skip-free audio, perfect for active exercise Built-in microphone for easy voice recording Super Fast USB 2.0 transfers music and data up to 40x faster than USB 1.1 Powered by 1 AAA battery; provides up to 15 hours of continuous play