This is the first device that records your voice while you sing along with your favorite Karaoke songs, creating a custom MP3 file for playback by overlaying your voice onto the song. The device displays lyrics you load when you plug it into a computer using its built-in USB port (cable included) and software, so you won't have to wait for the release of specially-formatted CDs used by dedicated Karoke machines; you can load new songs you download from the internet by connecting it to a computer. You can also lower or fully mute the vocal track of the original song, so that you can replace it with your voice so it is easily heard over instruments. The device supports WMA, WAV, and MP3 file formats, and it has a built-in speaker, microphone, and headphone jack for private listening. It has 512 MB of memory that can store up to 120 three-minute songs, and includes an SD/MMC card slot for memory expansion. Its rechargeable battery provides five hours of operation and takes four hours to fully recharge. Ages 12 and up. The manufacturer has confirmed that this item meets all U.S. Federal toy safety standards, including safety standards for lead. 5 1/4" L x 2 3/4" W x 5 1/2" D. (6 oz.)