This is the empty control box made out of extruded aluminum. It would be great for the DIY detector builder because it has the rails for sliding in the PCB and has a speaker too. It can also be easily mounted on a control rod and is pretty light plus.. it's tough as nails. Comes with 2 1/2 end caps. $37 USD shipped in N. America, PayPal only. I'll ship it overseas (but NOT to Nigeria), but there will probably be more shipping charges. I have more pics & info if you really need them. ..Willy.