[2-Level Volume Control Switch]: Specially designed for children, the kids headphones can be limited to a sound level of 85dB to prevent damages to kid's ears in daily life, and also allow to reach 94dB for clearer but still safe sound under the condition of airplane rumbles, car noises etc. [Built-in Mic & Great Compatibility]: iClever wired headphones work with the build-in HD microphone for hands-free phone calls. These over-ear headphones for kids support a wide range of devices with 3.5mm audio jack like Kindle Fire, Switch, iPad, Smartphone, MP3/4, Study Tablet, Laptop, PC etc. [Stereo Sound & Sharing Function]: With built-in 40mm drivers, HS19 children headphones emit a full balanced stereo sound, making them perfect for playing games and listening to music. Kids can insert another headphone plug into the sharing jack to share audio with friends or families. No need for an extra splitter. [Comfort Wear & Foldable Design]: The ultra-soft earmuffs and over-ear design make better isolation from ambient noise and good breathability, thus your kids won't feel tired even for a long-time wear. kids headphones for airplane are foldable and compact, convenient for carrying and storage. [Generous Warranty]: At iClever, we always put customers first, and we're proud to stand by the quality of our products. If you have any issues with the wired headphones, feel free to reach us and we'll take care of the issue within 24 hours!