2 in 1 audio headphones to listen to your music wirelessly in bluetooth 5.0 up to 10m range or plugged in with the removable jack cable. Kids safe: sound limited to 85 db to protect the ears of children. With built in microphone, play / pause and volume buttons to control your music and answer phone calls. Compatible with all smartphones, tablets, audio and video players equipped with bluetooth or with a 3.5mm audio jack output for headsets. Rechargeable battery: several hours of battery life in wireless mode. Unlimited playing time in cable mode. A lovely design from avengers Robust, lightweight, and foldable, it fits in a bag and can be taken anywhere: at school, when traveling Adjustable, it adapts to all head sizes: adults, teens, children, boys, girlsit is super comfy for everyone.