Volume limits over 85 dB are known to cause hearing loss over time. Our unique headphones protect your kid's ears, yet deliver studio grade sound. Crafted with 40 mm custom dynamic drivers, we recreate the best sound you have ever heard into a headphone experience. The aluminum used in the ear cups and headband insure that the KB2 headphones will last far longer than competing products made from cheap plastic. It also makes them lighter and gives them a higher quality look and feel. Our soft and supple ear cushion design provides amazing comfort while also attenuating 92% of sound at 1 kHz. There is no need to turn them up to a dangerous level even when in a noisy environment like an airplane. We've wrapped our ear pads and headphones in a specially designed soft-touch material, providing unparalleled comfort for your child. Every detail is made with kids in mind, from the cozy ear pads to the snug fit. Prepare for smiles, because your child's comfort is our top priority. Features: Driver: 40mm Impedance: 32 Ohms Frequency: 20-20,000Hz Cable Length: 4ft Microphone Sensitivity: 92dB+/-3dB 3.5mm Stereo Jack Adjustable/Foldable Design Cushion Ear Pads/Headband