Simply install the rechargeable Around the House Remote Control Extender™ in place of one of the AAA or AA batteries inside your remote control and point the receiver or attach the included emitter tether cord to the components you wish to control. (If your remote uses AA batteries, slip the assembly into the included AA sheath.) Like magic ... you now have upgraded and converted your favorite existing IR remote control to the latest Digital RF remote -- giving you the freedom to go from room-to-room and control your components up to 100+ feet away! You can control your components inside or outside your home, upstairs or downstairs and through walls, floors and doors without any direct line-of-sight. Unlike other "dock-on" type remote control extenders, you don't have to attach a transmitter to the front of your remote control, nor be limited to a single room as with older stand-alone "cone" type extenders.