Brand New. Never Used. The original box was thrown away however this is in perfect working condition. Your Harmony 665 allows you merge the remotes of up to 10 of your home entertainment devices into one so you can, and should! keep those other remotes out of sight. The Harmony software will guide you through entering the manufacturer and model numbers of your home devices so Harmony understands how to control them. It then helps you create Activities (or scenes) so you're only one-button away from watching television or playing a game. Setting up Favorite Channels Add up to 23 Favorite Channels to your screen, with icons or station names. Learn more about Adding Favorite Channels. Adjust and tweak each of your buttons. Create as many Activities as you'd like and tweak what each button does or which commands appear on the screen. Unlike other universal remotes that may control devices individually, Harmony controls an Activity such as Watching TV or Playing a Game. You don't need to choose which device you want to control. Start your Watch TV Activity and your volume will automatically control the stereo, and channels will automatically change your TV or cable/satellite box. Watch this video to learn more. Keep your devices in sync To help keep your Harmony in sync with your devices, avoid turning your television, cable/satellite box and other devices on and off manually or by using their original remote control. If something didn't turn on then use the help feature.