This unit is perfect working, i didn't use it so much, just in my smoke free studio, with an Ableton Lite license still unredeemed.

ACPAD was developed following a successful kickstarter campaign in 2017 by Robin Sukroso.The idea behind this device was to use it with an acoustic guitar to expand the timbral and percussive capabilities of the instrument through the use of external hardware and virtual synthesizer via MIDI protocol.

You can connect it via Bluetooth (MIDI) or mini USB cable (i no longer have the original cable one and i don't ship it).Due to the closure of the store, this device is no longer found commercially, and its integrated software such as “Replay” is also no longer retrievable. (I have the Windows driver and its software if you are still interested, not for Mac)