AMPERO CONTROL is a compact and robust MIDI controller with full MIDI control via MIDI, USB, and Bluetooth output. It features four foot switches, each capable of sending 16 different MIDI messages. You can also add an expression pedal or foot switch. These rich features are complemented by a smart, dedicated mobile app that allows for easy program editing. AMPERO CONTROL is the perfect MIDI controller for players of all levels, giving you smart control over your pedalboard. [Main Features] Compact 4-footswitch Bluetooth MIDI controller Supports standard MIDI, USB MIDI, and Bluetooth MIDI input/output/thru MIDI message output and forwarding MIDI messages Up to 16 MIDI messages can be output with one footswitch action (32 for A/B groups) 100 banks of 4 switch settings can be memorized (including 2 CTRL/EXP jack settings) - 4 different footswitch functions can be set - Easy operation with dedicated mobile app - 2 CTRL/EXP TRS jacks for connecting external switches or expression pedals - 3 LEDs indicate MIDI message and Bluetooth connection status Wide power supply range: DC 9-18V or 5V USB bus power. Size: 258.5mm (W) x 55.5mm (L) x 49mm (H). Weight: 440g. MIDI Commander Ampero Control can output a wide range of MIDI messages, including PC, CC, and Note On/Off, via three types of MIDI: MIDI, USB, and Bluetooth. You can freely control MIDI, such as changing presets, turning effects and multis on/off, and playing/stopping your DAW. Ampero Control solves complex controls with simple tap actions. With one footswitch action, it can send 16 different MIDI messages (32 MIDI messages can also be divided into two groups). Easy-to-use mobile app (Android & iOS) Ampero Control comes with a simple, user-friendly app for editing MIDI messages. The app also provides templates for several audio devices. You can also easily create your own templates, making it ideal for players of all skill levels. Highly scalable Ampero Control is equipped with two TRS jacks for connecting expression pedals or momentary footswitches. Connecting these to the unit allows you to add MIDI footswitches, bank -/+ switches, EXP continuous control, and other functions.