What is this

[GorillaMaxx360]

I was looking at castle creations website and i saw this http://www.castlecreations.com/produ...7-channel.html. Is this just a normal fm recever only it is smaller and has more chanels. Is this any good. should it work with any fm radio and do you need to buy the chanel crystals from castle creaton to make it work. It might be helpful to you guys because it has so many channels great for esc 3 servos and a couple of fans. Just an idea tell me what you think.