Open Listening Design - Earcuffs designed to hear both music and surrounding sounds Microphone - Environmental and noise reduction for clear calls 6 hours of continuous playback time and 18 hours of recharge power Open Listening Design - An original design concept that blends sound into space. Designed for both comfort and situational awareness, they sit outside the ear canal and allow users to enjoy music, podcasts, and calls while still hearing their surroundings. Comfortable shape - Allows users to still participate in the world around them. Designed for all-day comfort (less strain means less fatigue). I wore these once for less than 15 minutes. I have BIG sensitivity issues with my ears and can't wear earbuds or headphones. I tried this out but they didn't work for me. My problem is your gain. I have the instructions, both earcuffs and case. No cord. They are in excellent condition. Comes from a smoke free home Buy 2 or more of my listings, up to 5 pounds, and save 10% PLUS only pay shipping for the first listing!