Gesture transmission

I'm quite new to arduino and would like help in deciding what component is right for my project.

Basically the project is about a gesture controlled wireless car which moves according to the position of the transmitter placed on the hand.

For this I'll have to transmit the signal from transmitter.My doubt here is what should I use to transmit the signal from the transmitter ? Can it be a RF transmitter ?

It can. It can be a 2.4 Ghz transmitter like a Xbee, depending on your specs.