This is a Micro Engineering 42-103 HO Scale Code 70 3 Point Track Gauge

and the volume can be set with the built-in potentiometer

This is a Wheels of Time 70013 1:160 N Scale FWD Wagner /Raygo Wagner PC-90 Piggy-Packer Early with Bottom Lift - Assembled - Norfolk & Western

The Trainz SKU for this item is P12313562

The Trainz SKU for this item is P12146809

Athearn 29239 HO Scale Burlington Northern Santa Fe C44-9W Diesel Engine #1096 ProductID_12242098 This is a Micro EngineeringKey Features Gullwing cabStandard snowplowNose door with windowLeslie S3LR air hornLarge Sinclair antennaLong short short grilles, Sunshades, Mirrors, 4,000 gallon fuel tank Fully assembled and ready to run out of the box. Roadname specific details Painted and printed for realistic decorationHighly detailed, injection molded bodySee through cab windowsSee through radiator fansSee through dynamic brake fans if applicable Separately applied horn