Amazon has listed the 2.4Ghz Edition of Hyperkin RetroN 3, revealing a picture and some new information. If you are interested, you can preorder the newly-available video game system with this link. Check out the packaging of the console with the image below this paragraph. 
The system comes with two 2.4 GHz wireless controllers with ranges of up to 15 feet. With that said, there are also ports that will let you connect the NES, Super NES and Sega Genesis controllers. In terms of video output, you can use either S-video or composite AV.
For the uninformed, the Hyperkin RetroN 3 can play thousands of compatible NES, SNES, and Genesis game cartridges. In addition to the above-mentioned longer range, the wireless controllers of 2.4 GHz Edition also have lower latency.
If you are looking for a convenient way to play your classic cartridges, you might want to take a look at the Hyperkin RetroN 3 Video Game System.