HeroNeo&reg; Universal Smart Remote Control Controller Learn Function For TV CBL DVD SAT L307 This product adopts the techniques of fast code locating, it can copy the codes/functions from your original IR remote controls It provides 3 devices / 93 keys for learning, you can choose to learn the functional keys optionally for your home devices It's the best choice in usage for multiple appliances with permanent memory after simply learning setting up Application: TV, VCR, SAT, CBL, DVD, CD and other infrared devices Powered by 2*AAA batteries( not included)