For all iPhone/iPod users, check this out, the iPhone DJ Mixer. It lets you c****ine the music from two iPhones, or iPods or MP3 players or one of each. It features a spin option; 2 effects programs with reverb, flange and filter and cross-fade slider and recording option, and also a speaker system connection and microphone jack. This mixer can charge your iPhone and iPod while you are doing the mix.