EM-406A vs. EM-408

I am a NOOB so bear with me. I am just starting my research in Grad school. A previous group used the EM-406A to create a wirlessly controll link between a RC car and laptop computer. This car was also capable of receiving GPS data via the EM-406A. I am looking to duplicate this project but spark says this is out of stock. Can the EM-408 do everything that the EM-406 can? Is there an LED? ON board voltage regulation?

Thanks

NJiNEAR