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, 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.