1.STYLISH DESIGN: These Earbuds with Light feature a unique heart shaped design with colorful gradient lights for a personalized look that goes well with any outfit from sportswear to business attire. They stay in place even during intense workouts or sports activities. 2.5.3 CHIP, ONE STEP PAIRING: The Heart Shaped Earbuds are powered by the latest version of 5.3 chip technology, which increases the sound data transfer speed by 80 percent, achieving ultra fast connection of 0.1S and lower energy consumption ( distance up to 15 meters) ). After the first connection, remove the earbuds and it will automatically pair with your device. 3.EASY CHARGING: The charging case that comes with the headphones is both stylish and practical. The earbuds fit securely into the case and quickly. The case is small enough to fit in your pocket or purse, so you can easily your headphones on the . In addition, the case supports charging for added convenience. 4.COMFORTABLE AND LIGHTWEIGHT: These LED Luminous Headphone also come with the original XXS size earbuds for those who prefer smaller earbuds. In addition, they are designed to be lightweight so you can comfortably wear them over your ears without feeling any pressure.