Boss were doing the  do-it-all digital delay genre before any of these USA hipster-megachurch firms. Sensible modes, tap tempo, bulletproof box... and, reverse and modulated modes for fun. 

Model: Boss DD-7 Digital Delay
Made: Taiwan, recent model
Serial: sticker removed
Type: digital delay
Power Input: standard 9v DC centre-negative  or 9v battery (not included)
Accessories: none

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