Q1 Headphones Monster Kids Over-Ear Bluetooth Earphones(Blue)

1. Bluetooth version: 5.12. Bluetooth distance: 15m (no interference)3. Turn on the light and use time: about 8 hours4. Turn off the light and use time: about 20 hours5. Horn size: 40 mm in diameter6. Battery capacity: 400mAh7. Adjustable hair band, suitable for people of different ages.8. Foldable and portable design, easy to store.