Klein Tools' wireless Bluetooth® Speaker with Magnetic Strap offers great sound plus more mounting options. The flexible strap can be used on conduit, backpacks, cooler handles, belt loops... wherever you want to go. A magnet is smartly embedded in the strap allowing you to attach it to any ferrous surface. This speaker provides high-quality, crisp treble and bold bass via a wireless Bluetooth® connection or wired auxiliary input. With great sound, the hands-free speakerphone, and superior mounting options