The iQueue is the smallest, lightest, best-sounding, easiest to use and most economical digital media player on the market today. It plays audio files in MP3 format from an industry-standard SD card. Just slide the card into the player, and play begins automatically and instantly. The MP3 format allows for near-CD audio quality, and because the SD memory card uses nonvolatile “flash” memory, stored audio is preserved in the event of a power failure. With older messaging technology, messages were produced in "blocks" ("productions"), typically 4 to 6 minutes in length, with the music in the background. If you wanted to add a new message, delete an obsolete one, the entire production had to be redone at great expense, even though all you needed was a small change. Ditto to change your music to “refresh” your messages or celebrate the holidays. The iQueue allows you to log into your account at www.amtc.com and delete any message that is obsolete, as well as change your music, at no cost. If you want to add new messages, you pay only to create those new messages, not to redo everything. The iQueue lets you download new messages within minutes of when they’re produced in our studios, so you save time, too (not to mention shipping costs). Using a standard SD card reader/writer (included) plugged into the USB port of your PC, your card looks like a regular hard drive to Windows. Adding or deleting files is “drag ‘n’ drop” easy. The iQueue installs easily. Just connect the included audio cable between the player and the “music on hold” input of your business telephone system.