A single PUCK will operate multiple components, but the infrared range on PUCK to target devices is about 3-5 feet and must be positioned so that the infrared signal hits all the target devices properly (range from PUCK to phone is approx 100 feet).  

For example, I have a single PUCK controlling an AppleTV, an LG TV and a Comcast box, but they are all clustered together. In the living room, I have a single PUCK attached to the wall-mounted LG tv, another PUCK on the ZVOX soundbar below, and another on the AppleTV that is hidden behind books (so my little one doesn’t mess with it).