Do you ever find you want to mix together music from two different sources, but can't do it because your mixer can only take one type of input? Well, now you can! The Table Top 2-Channel Dual USB-SD Card Mixer has dual USB and AUX inputs, which allows you to mix completely without any CD players or computers. The AUX lets you use your iPhone as the second source. As well as two USB ports and two SD card slots, the mixer has two sets of RCA sockets and a 1/8” AUX connector. Other sockets on the main console are a 1/4” microphone socket and a 1/4” headphone output socket. The controls for each input include repeat and random playback options and there is a folder/track browsing knob to help you get to your desired track on the storage medium quickly. There are buttons operating standard music playback controls beneath a display showing track details for each channel. Other controls for each channel are cue, bass, treble and volume dials. You can synch the beats of two sources by following the LED sound meter for each channel. There is a microphone talk-over switch and separate volume and echo controls for the mic, and independent headphone volume controls. Most importantly for a DJ mixing table, there is an easy-to-use crossfader on the unit.