NANO K3 powered reference monitors are 3" studio speakers that deliver legendary JBL sound quality and accuracy for audio production applications. Sold as a master and extension speaker set, NANO K3 monitors feature premium audio performance and Bluetooth functionality. Plus, the speakers also feature a stylish design, making them equally suited for home or project studios and music-education environments. The NANO K Series, K3 monitors feature JBL’s patented Image Control Waveguide technology derived from the flagship M2 master reference monitors which delivers excellent depth and detail across a broad sweet spot. With this level of accuracy and performance, the monitors provide an ideal referencing experience that allows you to make critical decisions about your mix.