Age: +3 years. 2-in-1 headset to listen to your music wirelessly via Bluetooth 5.0 (up to 10m) or with the removable jack cable. Sound limited to 85 dB to protect children’s ears. 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 3.5 mm audio output for headphones. Rechargeable battery: several hours of battery life in wireless mode. Unlimited playback time in wired mode.