It's a handy little flangey, and voiced a little smoother than the stuff by Boss etc. 

Model: MXR M152 Micro Flanger
Made: USA, recent model
Serial: obscured
Type: flanger
Mods: knobs replaced
Power Input: standard 9v DC centre-negative (supply not included)
Accessories: none

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