The JBL Jr310BT - Children's headphones with Bluetooth and built-in microphone is a wireless headphone model specifically designed for children. Here's some information about the JBL Jr310BT:

1. Design: The JBL Jr310BT features a child-friendly design with an adjustable headband and cushioned ear cups to ensure a comfortable and secure fit for young users. It is available in various vibrant colors.

2. Bluetooth Connectivity: These headphones use Bluetooth technology to wirelessly connect to compatible devices like smartphones, tablets, and computers. This enables kids to enjoy their favorite audio content without the hassle of tangled cords.

3. Sound Quality: JBL strives to deliver a high-quality audio experience even for young listeners. The Jr310BT provides clear and balanced sound, ensuring that children can enjoy their music, movies, or games with good sound reproduction.

4. Controls and Safety Features: The Jr310BT headphones have built-in controls conveniently placed on the ear cups, allowing children to adjust the volume, play/pause music, and skip tracks. They also incorporate a volume limiter to ensure that the sound levels are safe for young ears.

5. Battery Life: With a built-in rechargeable battery, the Jr310BT offers a decent playback time. The actual battery life may vary based on usage and volume levels.

6. Durability: JBL designs their Jr series headphones with durability in mind. The Jr310BT is built to withstand the active lifestyles and rough handling of children.

7. Sharing Functionality: The Jr310BT includes a "ShareMe" feature that enables kids to wirelessly share their audio content with another pair of compatible headphones. This allows siblings or friends to enjoy the same content simultaneously.

It's worth noting that product specifications and features may change over time, so it's advisable to visit the official JBL website or contact JBL customer support for the most up-to-date information on the JBL Jr310BT.