"The DigiTech® JamMan Express XT is the most full featured compact looper on the market. It’s simple, small, and very sophisticated. With true-bypass, 10 minutes of stereo looping, Silent Clear™, and JamSync™ the Express XT is a perfect looper for your pedalboard or addition to your JamMan® XT looping set-up. It’s incredibly easy to use with dedicated LEDs clearly showing its status. The Express XT uses a 9V battery (not included), or you can power it with an optional power supply."