The PPCM20 is the best way to listen to music wirelessly. It includes a dock with auxiliary input capable of transmitting audio from any device with a 3.5mm jack, plus a USB stick that plugs into your computer, so you can listen to your PC or Mac audio wirelessly. Plus, the PPCM20 headphones have a microphone, so you can use them as a headset for gaming, voice chat, and video calling. The headphones run on built-in rechargeable batteries that last up to 8 hours - to recharge, simply connect them to your computer’s USB port. Using 2.4 GHz wireless technology, these headphones have a wireless range of up to 40 feet.