Comfortable to Wear: The adjustable headband with soft cushion and pressure-relieving ear pads to ensure long-wearing comfortable without stress, suitable for people with different ages. Cute Cat Ear with LED Lights: Bluetooth headphones features with a lovely cat ear design and fancy LED lights. The wireless headphone designed with unique color, perfect for kids and adults wearing. Foldable & Stretchable Design: Headphones feature a on-ear foldable design, save more space when on storage. Power supply: Built-in 400mAh rechargeable battery can realize about 7 hrs of playing with LED lights. Functions: Adjust volume, switch songs, answer calls, reject calls, hang up calls, Bluetooth playback, call replay, Bluetooth connection, voice prompts, battery display, FM.TF, EQ, LED lights, pure English broadcast. Perfect gift: Perfect Christmas/Valentine's Day/Birthday gift for family and friends, suitable for office work/sport/school/traveling, etc. Tips: The new earphones cannot be used to full power right away, and do not turn on the volume to the maximum, otherwise it will easily damage the earphones. Do you want to know the correct way to burn headphones? 1. Use one-third of the normal listening intensity to drive the headset for 12 hours to 24 hours 2. Use two-thirds of the normal listening intensity to drive the headset for 12 hours 3. Use normal listening intensity to drive the headset for 72 hours 4. Use three-quarters of the normal listening intensity to drive the headset for 24 hours 5. Enter the normal use stage 6. In normal use, the volume is not easy to be too loud, just 2/3 of the highest volume. 7. Take off the earphones while sleeping to avoid breaking the earphones 8. The above are some suggestions for appraisal machines. You can praise your favorite machine according to your needs.