Great for traveling, the Handheld Scientific BT-500 bluetooth adapter allows you to connect your USB-equipped keyboard to your mobile device. Simply connect your keyboard to the adapter, pair your mobile device, and start typing. The adapter comes with a handy indicator light to let you know when you’re connected, when the battery needs charging, and when the unit is on. It’s also compatible with all types of USB keyboards, including those with a built-in hub like the Happy Hacking, DAS, Apple, and more. It can even connect to keyboard-emulating devices like barcode scanners, RFID readers, magnetic strip readers, and foot pedals.