InnoHug Neck-Band Noise-Canceling Headphones Muff Earpads Noise-canceling circuitry for optimal sound experience A great design that fits snugly over the ears. Wear it at the back of your head for comfort and listening pleasure! Neckband design for sports-wear and fashion conscious Built-in noise isolation microphone for phone call operation 10 to 23,000 Hz smooth response using 40 mm dynamic drivers, 3.5 mm E-shaped stereo jack with 1.2 m flat cable, 103 dB 32 ?