HO Athearn Genesis CW44-9 NS 9169 DCC & Sound

I estimate this model only has a handful of hours of runtime. Like New. 

Decoder address is 9169

Note: Front headlight is notably dimmer than the front ditchlights. I recall trying to fix it with CVs, but no luck. However i'm not all that knowledgeable with CVs. I have attached two photos showing the difference between the front & rear lights (The rear are pretty even brightness). Mentioning it as it's bugged me slightly since I purchased the model and it's noticeable in a well lit room.