Boss DR-3 Dr. Rhythm Drum Machine

Barely used Boss DR-3 Rhythm machine. Barely as in once. Bought new at local music store for goofing around at home with my MAC and guitars. Not my thing........ immediately it wound up sitting on the side with some other gear and never got touched again. Been sitting around for close to 5 years now. Still have the manual but not the box. Perfect working order and literally looks like it just came out of the box. No scratches, No dings, No loose connections........ Not even dust on it. No power transformer included. Didn't even mess around with it long enough to even bother. Shipping around ~$20.00 using USPS priority box. Will include a receipt of shipping and if less than $20.00....... will refund difference via Paypal.