the roland tr-606 is a portable, economical, automatic and fully programmable rhythm device, which can memorize your own rhythms with exceptional flexibility. with it you can write and record different percussive rhythms into non-volatile memory (battery back-up), with up to seven different drum sounds plus accent. .... i have never had any problems since i bought it and it has been a joy to own. this tr-606 is in perfect cosmetic condition for it's age. it has literally been in storage for 20+ years. check out the photos of the actual unit. it has been well taken care of in a smoke free project studio. it is in perfect working condition. hooked it up today to test and it works as new.