1. Enjoy Colorful LED Lights & Extended Playtime Experience the unique LED breathing light that automatically switches to multi colors, perfect for a romantic and great time. Plus, enjoy 24 hours of music playtime with the upgraded battery that lets you use the headphones as a wired headset with the provided audio cable. You can also stop the light with a quick click on/off button. 2. Comfort & Perfect Fit Guaranteed Our exceptional soft protein earcup, adjustable headband, and skin-friendly rubber layer provide maximum comfort and durability. The headphones' rotating joints automatically adjust the angle of the ear cups to fit your head, reducing the pressure on your ears for a long-listen comfort. 3. TF Slot & Easy Foldable Design Take advantage of the TF slot that supports up to 32GB TF card, enabling you to free yourself from the harassment of phone calls. The foldable design makes the headphones easier to carry and saves space so you can bring them wherever you go. Note: TF mode only supports MP3 format. 4. Bluetooth 5.1 & Easy Control Compatible with most Bluetooth devices, such as PC, cellphone, tablets, and TV, with a connection range of up to 10M. The advanced noise reduction HD mic provides a clear hands-free call experience and lets you answer calls conveniently. You can quickly control call, song switch, and volume change. Note: The mic only works in wireless mode. 5. 4 In 1 Multifunctional Bluetooth Headphones Enjoy the benefits of long playtime Bluetooth 5.1 headphones, a TF card music player, romantic LED light, and wired headset that come in one package. The headphones produce incredible powerful sound and clear bass with proprietary 40mm large-aperture drivers that combine with advanced Bluetooth 5.1 tech. Get balanced audio in all music styles and a better listening experience in any environment.