[Over-ear Softness; Lightweight Streamlined Design]: Oval over-ear earmuff design, plus soft foam and breathable protein leather, make it more comfortable to wear. Without metal parts, the weight is lighter and does not increase the burden on the child's head. Streamlined design does not have any 90°sharp corners, so don't worry about your child getting hurt. [Sharing Function]: There is a 3.5mm audio jack on the Nabevi headphone, another headphone only needs to connect this jack, and these two headphones will hear the same sound without any other operations and equipment. This function not only guides children to learn to share, but also shortens the distance between them and their siblings and elders. [Built-in Microphone; High Quality Sound]: Nabevi kids headphones with microphone is convenient for online learning and communication. Outstanding sound quality created by its 40mm speakers, this stereo kids headphone could be the best partner for your child to study, play games, watch animation, listen to music, talk with friends, no matter at home, at school, on the go, on a train or plane. Its 3.5mm audio connector works with most devices. [Silence for Parents]: Wearing earphones that protect hearing, children can focus on their online classes, games, movies, animations, etc., and parents can continue to do their own things in a relatively quiet environment. Whether on a plane, car, train, or at home, parents and children can do their own thing without interfering with each other. [Hearing Protection; 85/94 dB Adjustable Volume Limit]: 32 million children worldwide suffer from hearing loss, 60% of which can be prevented. In daily environment, Nabevi headphone for kids limits the volume to 85dB, which can effectively avoid the damage to hearing caused by prolonged exposure to high-decibel sound. In a noisy environment, volume limit can be changed to 94dB, your kids can hear more clearly and get hearing protection at the same time.