JBL Jr 320BT Blue (JBLJR320BTBLU) is a kids’ Bluetooth headphone designed with JBL Safe Sound, limiting volume to 85 dB for hearing safety. It includes parental controls to set volume and listening time limits. It offers up to 50 hours of battery life with fast USB-C charging. It has a built-in microphone and can be monitored via the JBL Headphones app. It features a comfortable, adjustable and foldable design for children.