It's a Univibe-style job, but with some trademark JHS cleverness. First, it's tap tempo, and you can hook it up to an external tap or slave it off another JHS pedal too. The sound is very enjoyable, it's such a different wobble to a standard chorus or phaser. Buy it before I change my mind and keep it.

Model: JHS Unicorn v2 Vibrato
Made: USA, recent model, KCMO
Serial: 10767818
Type: tremolo
Power Input: standard 9v DC centre-negative (supply not included)
Accessories: original box

Condition Notes: used, no major marks. Tested and fully functional.
Overall: very good condition (8/10)