Originally there were going to be 40 - we're up to 38 - but I think it's now 60 so we can use voice recognition to program him.
Besides the I/O port on the remote there is one for a headset and one with 3 suares in a triangular shape connected by lines - looks a bit like a network symbol.
you need to make it run around with a stun gun, mobile security system, or great conversation starter when it comes flying from under the couch and zaps random guests.