Philips TAK4607GY/00 Kids' Audio Headphones, Bone Conduction, Bluetooth, Waterproof, Grey Wireless headphones with open designBone conductionParental control in the appIPX5 water protectionThe headband allows the headphones to adapt as your child growsThe headband of the headphones is both flexible and adjustable. This way, the headphones will fit comfortably on your child's head as they grow! They are perfect for children aged 4 to 12, for listening, learning and playing! Open and comfortable designChildren are always on the move! The cups of these lightweight headphones sit right in front of the ears, so whether they are playing, doing online lessons or listening to music, the headphones will remain fixed and comfortable.Parents can limit the volume and playback time via the Philips appEasily limit both the volume and playback time with the Philips app. The decibel level of the headphones is limited to 85 dB, but can be set even lower for more sensitive ears. Set the playtime for a day or a week, and a voice message will remind kids when the time is up! 5-hour playtime These great headphones have a playtime of 5 hours. With their lightweight and comfortable design, your kids will be able to spend time listening to their favorite music or talking on the phone with you! They have a built-in microphone for online lessons or games The headphones have a built-in microphone that eliminates ambient noise, so whether your kids are playing, doing online lessons or talking on the phone, their voice will always be clear! IPX5 water protection The IPX5 water protection rating allows you to play outside in any weather! The headphones are splash-proof and won't be affected by a little rain or sweat, so you don't have to worry!