【4 LED Lighting Effects】The speaker adopts LED rainbow light hidden at the bottom. It provides a more attractive lighting atmosphere but protects your eyes when playing games or watching movies. Click the "☀" button to change the light effect mode, and the light button can turn on/off. (Item Dimensions D x W x H: 16"D x 2.5"W x 2.5"H, Weight: 1.43lb) | 【USB Plug & Play】Just plug in the USB port for power (such as a laptop, PC host, USB port audio adapter) and it will automatic power on. No drivers or software need to be installed. | 【Bluetooth Mode】Plug the USB connector and click the “M” button to change into bluetooth mode. Search " R100" on smartphone/tablet and connect. (Note: Need USB Powered) | 【Easy to Use】4 independent buttons for easy operation of various functions. Click “M” button to change PC/Bluetooth Mode, Long press to power on/off. Click “☀” button to change light modes, Long press for 3s to clear the bluetooth memory. Click or Long press “+” and “-” to volume up/down. | 【Wide Compatibility】The Laptop Speaker supports most of the devices. Compatible with PC, Computer, Laptop, Tablet, phones. USB-C to USB Adapter Included allows the speaker work well with Type-C port only devices