The RPK-2 RailPro Starter Kit includes one HC-3 handheld controller, one PWR-56 power supply w/adapter, one power cord, one HC-3 charger, one USB cable and manual.
 
Professional grade, powerful, and very easy to use
Enough power to run 15 typical modern locomotives
All you need in addition to this starter kit is at least one locomotive module
You can add additional power supplies, handheld controllers, locomotive modules, and accessory modules, to expand this starter set to control practically any size layout!
 
Additional information here: https://www.ringengineering.com/RPK-2.htm