USB End + Control Button: The USB plug allows you to plug the light string into a USB hub, power adapter, laptop, TV or power bank. Press the button to change the color and light mode Dedicated Power Adapter Included: To get the most out of your Fairy Lights, our lights come with a dedicated power adapter that perfectly matches your string lights. With the power adapter, you can see the purest and brightest colors of the light string. You can also use the USB plug to power the lights Remote: You can use the remote to turn the lights on and off, change the color to one of 16 vibrant colors, adjust the brightness, cycle through the colors and set a 6-hour timer 4 Strands of Wire: Our high quality lights are made with 4 strands of sturdy silver wire that help keep the light's brightness stable. The wires are also flexible, which allows you to twist the light into any shape or position you want. When you're done using the lights, you can roll them up so they don't get tangled the next time you use them SAFE AND WATERPROOF: The fairy string lights stay cool even after hours of use, you don't need to worry about the lights overheating. The lights (except the USB connector) are IP67 waterproof, which means that even on rainy days, they will still be perfect for outdoor areas such as your patio, balcony, garden, dining area, etc.