Here is an MTH 20-20263-1 Southern ES44AC Diesel Engine with Proto-Sound 3.0.

Features:

Metal Chassis

(2) Precision Flywheel Equipped Motors

Illuminated Number Boards

Intricately Detailed ABS Body

Directionally Controlled Headlights

Die-Cast Truck Sides, Pilots and Fuel Tank

Authentic Paint Scheme

Metal Handrails and Decorative Horn

All Metal Wheels and Gears

Lighted Cab Interior

(2) Engineer Cab Figures

Moveable Roof Fans

Metal Body Side Grilles

Operating Ditch Lights

Operating Smoke Unit

Fixed Locomotive Pilots

Kadee Compatible Coupler Mounting Pads

Metal Wheels, Axles and Gears

Locomotive Speed Control In Scale MPH Increments

Proto-Scale 3-2 3-Rail/2-Rail Conversion Capable

1:48 Scale Proportions

Proto-Sound 3.0 With The Digital Command System Featuring: Freight Yard Proto-Effects

Unit Measures:19 1/2″ x 2 1/2″ x 4″

Operates On O-42 Curves Diesel DCC Features

Headlight

Bell

Whistle/Horn

Start Up/Shut Down

Rear Coupler

Front Coupler

Engine Sounds On/Off

Sound Volume

Ditch Lights Auto/On/Off

Forward Signal

Reverse Signal

Grade Crossing Signal

Cab Light On/Off

Extended Start Up

Extended Shut Down

Rev Up

Rev Down

Coupler Slack Sound

Coupler Close

One-Shot Doppler

Feature Reset

Idle Sequence 1

Idle Sequence 2

Idle Sequence 3

Brakes Auto/Off

Cab Chatter Auto/Off

Clickety-Clack Auto/Off

This item has been graded per TCA standards C-8: Like New. This item appears to have been run sparingly, and displays overall signs of very light previous use. The wheels show signs of light wear. The accessory bags are mint sealed. The original paint is in great shape, and the rest of the unit displays a like-new overall finish. The instruction manual is included. The original box is included. Please check the photos for a detailed look at this item. Overall condition is Like New.

Condition: Like New (C-8)
Operational Status: Functional
Original Box: Yes (P-7)

Manufacturer: MTH
Model Number: 20-20263-1
Road Name: Norfolk Southern (NS)

Scale/Era: O Modern
Model Type: Diesel Loco

The SKU for this item is 5934994.

Product Id: 11982279