We all have devices that are powered by AA batteries. Thanks to Tethercell, you can control your AA-powered devices using your smartphone. You just have to replace a battery with a Tethercell, and you are set. The device lets you set up schedules and timers. You get alerted when the battery is low. The device is compatible with iOS and Android gadgets.
The Tethercell replaces regular batteries and lets you control your gadgets. Like what you see? You can get it for $27.