Bluetooth pairing is an absolute game changer. Whether I'm at the gym, walking to work, or in the office, I can pair my Sony Wireless On-Ear Headphones ($50, originally $80) with my laptop or phone in seconds. You simply press and hold the power button to enter pairing mode, select "WH-CH500" in the bluetooth settings of the device you're using, and a recording will say "connected" in your ears.