2-AAA

FCS (2) AAA Battery Powered Belt Pack Amp. Stereo/Mono Selection, XLR or 1/4" Plenty of volume to drive any In-Ear Monitors. Input channels :stereo/mono internal source switchAnalog inputs:1 x XLR 1/4’’ combo (line in)Analog outputs:1 x 1/8’’ Construction: aluminumHard-Wired System vs Wireless. Sound wise, with a wire, your sound will be way better than wireless. You will have no hiss, no frequency issues, no dropouts, and no sound delay. It is the best possible way to go. If you must be wireless, you will fight every one of those issues at one time or another. Bottom line, if you are a stationary player, like keyboards, drummers, sitting in a chair in a church band, horn section stuck behind hardwired mics, etc. You'll win big time being hardwired. Remember this talk when you have a perfectly clean signal and wireless guys/gals are trying to get the sound guys attention. Comparison to Behringer P2 This product is a way sturdier build. Sound wise, they both perform the same.