Headphones to listen to music wirelessly via Bluetooth 5.0 or wired with the audio cable. Features: Kids safe! 85 dB max volume to protect children’s ears Can answer calls. With microphone and control buttons (play/pause and volume adjustment) Foldable! Very light, it fits easily in a bag Adjustable to fit all heads Up to 4 hours of playing time in wireless mode and unlimited use in wired mode thanks to its sturdy and detachable cable Compatible with smartphones, tablets, and other multimedia players with Bluetooth or audio jack Rechargeable via micro USB port (cable included) Specifications: Dimensions: H:21.0 x W:17.0 x D:8.0 cm Guarantee:1 year Material: Abs Plastic Model Number: HPBT010DES