1. Protect children's hearing, limit volume, and wear comfortably. 2. Two modes: Child mode/85db3db, suitable for children from 1 to 10 years old. Normal mode/102db3db, suitable for 10 years old and above. 3. Both learning and entertainment are applicable: Bluetooth + wired, wired connection to computer for online classes, or Bluetooth connection to mobile phone for entertainment and listening to songs, can be switched as needed, an indispensable children's headset for a happy childhood. 4. 5.0 Bluetooth audio and video synchronization. Bluetooth 5.0 is adopted, which supports lossless audio transmission. Compared with Bluetooth 4.2, the transmission speed is faster and more stable, and the signal is stronger. It achieves ultra-low latency audio and video synchronization. 5. Charge for 10 minutes / use for 2 hours, using a large-capacity rechargeable lithium battery, allowing you to enjoy music for a long time and listen to music for 60 days. With the support of fast charging technology, you can continue to enjoy music immediately. 6. Soft and comfortable to wear, the soft and skin-friendly protein foam earmuffs are filled with adaptive memory foam, which can adapt to the auricle and curve. It does not hurt or cause soreness when worn for a long time. It is more suitable for listening to songs and watching games for a long time. 7. The multi-dimensional fit is comfortable to wear. The retractable arm + suspended earmuffs are used to adjust the upper and lower positions and suspended earmuffs so that each user can find the arc that fits the head. 8. 6000+ tensile failure test quality assurance, and has undergone rigorous anti-folding and tensile tests. 9. Support to store TF card for playback without a mobile phone, and store the corresponding content according to the child's hobbies. 10. One-click switching of the sound in the FM mode radio station can still heal us. It can be used to listen to the troubles of youth, to confess through a song, or to listen to a story. 11. Color: Red 12. Material: plastic 13. Package Contents: 1 x earphones, 1 x charging cable, 1 x audio cable, 1 x Chinese and English instruction manual 14. Only the above package content, other products are not included. 15. Note: Light reflection and different displays may cause the color of the item in the picture to be a little different from the real thing. The measurement allowed error is +/- 1-3cm.