It uses a 2.1 channel setup comes with an included subwoofer for great bass tones. (geekwrapped.com)
The volume and quality is also well above most phone speakers out there and could easily replace many Bluetooth speakers that don't have great bass response. (androidheadlines.com)
The stereo is very clear with great bass, and the little touches of displaying «hello» on the dash when you start the car is a fun little feature. (autolist.com)