【Hifi Stereo Sound 】built-in 40mm audio driver to ensure excellent sound effects, volume control technology ensures the sound is below 94dB, within the recommended level for safe hearing of children. Made of sound-insulating material, the earmuffs can prevent ear damage from environmental noise. | 【Built for Comfortability】Kids headphones has memory soft cushions and protein leathe, with a soft touch finish, skin-friendly and breathable. weight is only 0.3lb, thus your kids won't feel tired even for a long-time wear. | 【ergonomic design 】Adjustable headband and swivel earmuffs, can let you get a perfect fit for your head shape, for children or teenagers over 3 years old, even adults. | 【Foldable & Portable】The folding design of the on-ear headphones kids minimizes storage space, whether going to school, traveling or playing, kids can easily carry and store it. | 【Durable and Tangle-Free】Come with a 4.9 ft cable, The nylon cord is braided, durable, and tangle-free. High-quality ABS material, so that the earphones can be twisted arbitrarily, very durable. | 【Poweful Universal Compatibility 】headphones kids support all 3.5mm jack devices,which can compatible with smartphones, laptops,desktops, kindle, computers, pcs, mp3, mp4, ipad car DVD player, etc.