About the Polk Audio Hinge? Wireless Powerful bass, everywhere you roam Complex basslines and lively drum loops are the backbone for today's hip-hop, EDM, and rock music. The Polk Hinge Wireless headphones reproduce that pulsing low end with the massive energy it deserves. Highs and mids get some love too, as Polk's Dynamic Balance drivers keep the sound well-rounded. And you can let the beat carry you through your day-to-day. These portable headphones sit comfortably on your ears and play music wirelessly from your Bluetooth-enabled smartphone or portable music player. The built-in battery 12 hours of wireless listening as you ramble around freely. Foldable, fashion-forward design We see new headphones all the time, so it takes one-of-a-kind style to make us do a double-take. I really liked the design. They're retro-ish, yet at the same time sleekly modern. The stitched leatherette and aluminum headband form-fits to your head, and the cushioned ear pads rest softly on-ear. When you get where you're going, the 'phones slickly fold up ? hence the name "Hinge" ? so you can easily stow them away. A cloth tote bag is included for storage. Control your music and answer the phone So you're not constantly fiddling with your phone while you shuffle around town, Polk included a control dial on the right earcup. Volume is controlled by wheeling around the small dial, and you can press it to play, pause, or skip tracks. If a call comes through, push that same dial to answer and talk hands-free. An internal mic captures your voice and eliminates external noise. Should you need to save battery life, you can plug in the included cable and listen to music wired up. Product highlights: closed back, on-ear design helps block out external sound Bluetooth connectivity for wireless music listening and phone calls with compatible smartphones aptX? decoding provides high-quality music streaming from compatible devices NFC-compatible for one-touch pairing with compatible devices 40mm dynamic drivers deliver energetic bass Polk's Dynamic Balance tuning minimizes distortion for clear, full-range sound multi-function dial on earcup lets you take calls, control music playback, and adjust volume with your Bluetooth-enabled device built-in microphone for taking phone calls folding design for compact storage aluminum headband with leatherette covering 82" micro USB charging cable 50" detachable mini cable with in-line Apple remote for optional wired listening drawstring cloth storage tote included frequency response: 10-21,500 Hz impedance: 32 ohms What's in the box: On-ear wireless headphones (black) 50" Audio cable with in-line remote/mic (3.5mm plug) 82" Micro USB charging cable (Type A USB on one end and Micro USB on other end) Cloth storage pouch Headphone manual Quick Fit Guide Polk Audio Hinge? WirelessOn-ear Bluetooth headphones (Black).