24 months warranty?Sturdy and durable construction gives us the confidence to offer you a satisfactory solution. If you have any questions or problems with these gaming speakers, feel free to contact us. We will answer within 24 hours. Bluetooth & USB Connections?Dual connection ways of PC speakers, meet our different needs. Plug and play with wide compatibility. Switch modes and adjust the volume with the knob for easy control. Lazy morning, brew a cup of coffee, connect the Bluetooth speakers, and wake up to a new day with melodious music. Effortless One-Knob Control? Delicate one-knob design enables these stereo PC speakers to easily realize ON/OFF, switch light mode, switch mode, and volume up and down instead of complicated independent buttons. Plug and Play?USB powered and no drivers needed. Plug the USB cable, then everything is ready to go. You can choose to use wireless mode or wired mode. These computer speakers work with a device that has a standard USB port for pc, desktops, laptops, PC, monitors, TV, etc. Of course, double-press the knob easily to switch to Bluetooth mode for your device. 7 LED Light Modes and Touch Switch? The desktop computer speaker adopts the latest touch control technology, double click to turn off the backlight, click to make a color circle, you can switch freely between RGB, ON/OFF, red, yellow, blue , Puper and Green as your preference. 6 color RGB backlight modes, rendering the atmosphere of music, watching movies, playing games, let you be in the scene. Dynamic Melody Brings Ultimate Experience? Built-in 2*5W balanced stereo speakers, RGB speakers provide stereo clean sound, allowing you to enjoy games, movies and music without distracting distortion, interference or noise. A decent gift for a friend or child.