• [Kids-friendly and Comfy Material] EarFun kid's headphones are made of kids-friendly materials that comply with RoHS2.0 and FCC standards and pass the CPC-certified. 
• [Balanced Stereo Sound] Developing kids' good listening habits early starts with great sound quality.
• [85/94dB Safe Volume Limited] The Bluetooth headphones are limited the volume to 85/94dB, which perfectly meets the WHO recommended level to prevent kids' hearing damage and effectively protect your kids' hearing no matter in studying or traveling.
• [Bluetooth 5.0 & Hands-Free Call] The headphones with Bluetooth 5.0 technology can easily connect to the devices and offer a stable connection within the 33ft range without interrupting your music.
• [40H Playtime, All Day Use] The Bluetooth headphones can keep you enjoying the playtime time of music, study and calls all day with 40 hours of ultra-long battery life.