The Aria ProII RSB Formula electric bass is a fantastic instrument manufactured in Japan in 1986. While it shows signs of use, it's in perfect condition and fully functional. It features a 9-volt battery-powered preamp, allowing for both active and passive use, both of which work perfectly. It's one of the iconic instruments of the 1980s. Highly sought after as a collector's item, it trades for over $1,000 on American sites like eBay.