The O Gauge Lionel Hudson type Tender is a pre-built diecast model measuring 10″ in black color. This sound-equipped tender has been converted from coal to oil, adding a unique feature to the model. and it is now in the great northern livery railway. With a scale of 1:48 and a Three-Rail System, this tender is ready to go and perfect for model train enthusiasts. The tender features knuckle style couplers and operates on an analog control system, making it a great addition to any train collection. IT HAS A FOUR PRONG PLUG AND I HAVE NO WAY TO TEST THE RAILSOUNDS. IT IS SOLD AS IS UNTESTED WITH ALL SALES FINAL, NO REFUNDS FOR ANY REASON WITH NO EXCEPTIONS, EMAI LWITH QUESTIONS AND THANKS