Comes with all Marantz codes pre-programmed, while other codes are easily entered for controlling most hi-fi and AV productsControls up to 10 separate sources; preprogramming with RC-5 remote IR codes means many brands controllable without further promptingNew codes easily learnt by pointing front sensor at unit, switching to ?learn? mode, and running through each function in turnCommonly used command sequences can be programmed and then accessed at the press of a single button.