The CA Series is an ultra compact mixer amplifier suitable for classrooms and training room applications. This model is designed for both desktop and wall mount installation. The unit supports 2 microphone, AUX input as well as a built in mp3 player in the unit (USB and SD Card support). The CA Series produces crystal clear audio reproduction. The unit also features Bluetooth audio capabilities and when coupled with an AEX teaching aid App, it allows the unit to be used as an engaging tool for classroom teaching.