The Roland AX-Edge is an eye-catching performance-focused instrument which can be customised using interchangeable Edge Blades. It has 49 full-sized keys, and a special sound set created for keytarists. It has 49 keys (with velocity and channel aftertouch), Sound Generator Synth-EX Maximum Polyphony, 256 voices, multi-effects and a vocoder. You can use the smartphone AX-Edge Editor app (Android version/iOS version) to edit the AX-Edge’s sounds. It’s powered by an AC adaptor and you can also buy a rechargeable Ni-MH battery.