Up for sale is a brand new Strymon BigSky MX Multi Reverb pedal. From the manufacturer:

BigSky MX features a staggering amount of computing power — it uses a high performance tri-core 800 MHz ARM processor — all dedicated to producing truly breathtaking reverbs. Our new reverb algorithms were meticulously created by hand, and then a state-of-the-art gradient descent optimization algorithm was used to dial out any undesirable ringing or artifacts. 

This type of neural fine-tuning is based upon the same techniques that have enabled the recent AI revolution, and the result is springs that drip and splash, physical spaces you can really feel yourself in, and the sweetest possible musical response to every note you play.