Here is a portable karaoke system that combines with your smartphone or tablet to let you sing along your favorite songs. The Singsation Rhapsody Karaoke System has 8-inch speakers and multi-color LED lights. It comes with an integrated phone/tablet stand. It runs for 4 hours on battery.
With Bluetooth 5.0, the Rhapsody connects to your mobile device for YouTube songs and videos. It also has a USB port and Micro SD card reader. It has a remote control that lets you adjust microphone volume and play/pause music. You can find out more here.