This is a Tiny but excellent Drums / Percussion kit.Please Check Demo-Movie below.Just rotate your phone to hit each pad.The APP uses orientation-sensor,so you must check sensors of your device first, please.Confirmed equipment:Nexus S, Nexus ONE, SC-02C(Galaxy S2), SC-02B(Galaxy S), SC-01C(Galaxy Tab), 001HT(HTC Desire HD), LG-P500, IS03, IS01Other device which Android 1.6 and up would work.Not available on Android 3.0 and up.