Your music experience gets even better now that iPod nano has Bluetooth 4.0 built in. Pairing iPod nano with Bluetooth-enabled headphones and supported speakers is a cinch. With no wires in the way, working out with iPod nano is even easier. (No more getting wires caught in your free-weights.) And if your car’s sound system is Bluetooth enabled, when you sit down in the driver’s seat, your iPod nano is ready to pick up where you left off. Without missing a beat.