Specktr uses MIDI BLE program, a program developed by Apple that allows you to connect by Bluetooth and be recognised as a MIDI peripheral device. All the MIDI BLE compatible devices are compatible with Specktr. For this, the device must be Bluetooth 4.0 minimum and must be equipped:
For Mac: Mac OS Yosemite Minimum
For Ipad/Iphone: IOS 8 Minimum
For Android and Window : WidiBud Specktr Midi key required for connection on all your systems.