Problem: You have a kick-ass stereo, or a pair of excellent studio monitor speakers, and you want to hook up your iPhone to listen to some music. Only you don’t want to dig out the headphone dongle and plug in a cable.
Solution: The Kali Audio Bluetooth Module. It hooks up to your speakers via cable, adding a Bluetooth receiver that lets you get the music out of your iPhone or iPad. It seems simple, and it is. But it’s also super-duper handy.