It's small and simple, but it's handy. If you're running an ampless rig straight into a PA or recordng setup, you need a cab sim to get the whole thing pumping properly. This is one of the best basic ones going around. 

Model: Mooer TresCab 
Made: China, recent model
Type: speaker/cab sim
Power: standard 9v negative supply (not included)
Equivalent new street price (approx): $149aud
Mods: none
Accessories: no box or docs
Condition notes: used, no major marks, very good condition