Even though it’s just a little device, Thanko USB 24-Hour Timer Switch can do a great deal when it comes controlling your device to go on and off. Too bad the instructions are in Japanese but don’t worry, the device display is English. It’s pretty straightforward device, very easy to use switch where you can set up when it’s time to turn on or off your gadget at any one-hour interval up to 24 hours later. This small switch is ideal for using with a smartphone, power bank, USB-powered fan, and many more. It helps to prevent devices from overheating or using too much electricity. [Buy It Here]