Key Features: Efficient Cooling, Steady Performance. SOUND BY JBL£ºBuilt-in Dual 18W Stereo Speakers with Dolby Audio and subwoofer. Auto Focus/Auto Keystone Correction/Intelligent Screen Alignment/Intelligent Obstacle Avoidance. Intelligent Operation to be a Smarter Projector. ??K3 vs. K3 Pro: The K3 Pro consists of the K3 projector paired with an exclusive, dedicated subwoofer. If you have higher standards for audio quality, the K3 Pro is the definitive choice.
