an Entity references as follows:
The HandSonic HPD-20 musical instrument is a hand percussion pad introduced by the Roland Corporation. It was reviewed by digitalDrummer Magazine in 2013. It can be played on its own or used as an addition to a larger drum kit. The dynamic pads are made of rubber to reduce fatigue on the hands. The rear panel includes a mix-in stereo input along with a stereo headphone output and two quarter inch jacks.