About this item HiFi Stereo & Wireless 5.0These headphones feature built-in 40mm large drivers that deliver HiFi stereo sound and powerful bass, providing an immersive experience. With Bluetooth 5.0 technology, enjoy a stable connection without the hassle of re-pairing. The built-in microphone allows for hands-free control and easy operation. Colorful LED Light & Wire/Wireless ModeDesigned with colorful LED lights, these headphones will make your kids stand out. To toggle the LED on or off, simply click the top button twice. Turn off the LED while using in wireless mode to conserve battery life. If the battery runs out, plug in the 3.5MM audio cable to continue listening. Long Playback Time & Wide CompatibilityWith a 400mAh battery, these headphones provide up to 20 hours of operation time. They are compatible with all Bluetooth-enabled devices such as smartphones, tablets, laptops, and music players. Additionally, you can insert a TF card to enjoy your music directly. Comfortable Ear