Review on Sony SRS-XB21 Red Portable Wireless Bluetooth Speaker - Ultimate Portability and Enhanced Audio Experience! by Mike Devine

This is a great little BT device. Obviously if you look at this you are not going to buy a hi-fi kit. but for portability and performance it works really well! This is not a neutral sound; Rather, the bass here is very, very pronounced by default. However, you can adjust the equalizer through the app. Why did I hit a star? While charging, it seems like you can't turn the volume up past a certain threshold, which doesn't seem to exist when the device isn't plugged into an outlet. very strange. All in all a solid BT speaker.