Premium Bluetooth Wireless Noise Canceling Headphones. Super Light yet Extremely Powerful Speakers (headphone weighs less than 7 ounces). Built-in microphone makes the 777's a great work or play tool via hands free phone calls and video chat. Over 24 hours play time with full battery charge. Sharp, crisp, clear & full, rich, wide ranging sound! You can expect to pay well over $250 to find anything else on the market that even comes close to delivering the sound quality of our 777's.