5 DYNAMIC LIGHT MODES: With 5 colorful led lights effects, which can be switched in one click. You can also turn on/off the light by the control button. With these lights to enhance the atmosphere of listening to music watching movies and playing gamesUSB PLUG & PLAY: Just plug in the USB port for power and sound. Press the " M " button to PC mode to start and control the volume +/- with rotate button on the computer speakersBLUETOOTH MODE: Built-in V5.3technology, allows theconnect cellphone, tablet, PC via Bluetooth, more convenient playback. Press the " M " buttontomode and then search " R60" on smartphone/tablet to connectSTEREO & CLEAR SOUND: Frequency range of 20 Hz - 20 KHz. Thecomputer speakers can provide clear & loud sound, bringing you Immersive sound effect and enhance your listening experience when you enjoying indoor movies, videos, music and gamesEASY TO USE: Rotary knob for power on/off and volume +/-. One click light button to turn on/off or change light modes. Click “M” button to change PC/Bluetooth/AUX Mode (NOTE:3.5mm AUX Cable Not Included). Long press for 3s to clear thememoryWIDE COMPATIBILITY: Compatible with PC, Computer, Laptop, Smartphones & Tablet. It can be plug-n-play with USB, also equipped with a USB C Cable which makes thework well with Type-C port only devices like Macbook Air Pro, smartphones or other devices