1.0, 3.5mm aux in,Li-battery,Sourced by aux in (cable),Volume control & power switch,LED power indicator It is easy to connect this speaker to a cellphone, Laptop or PC. Comparatively small and clever, this speaker comes complete with a stylish finish with one Φ40 mm micro driver to deliver stunning sound. The speakers make use of the high efficiency of class D amplifiers to present excellent ...