To bundle with audio source devices such as your phone or music player
Notch design, easy to operate
be compatible with Q5 and Q5S, especially for the Q5S to see its battery and charging status clearly at a glance via the side indicator.
Big or small, any size will do
The C-Q5 is designed with 4 bundling elastic band on the back, so you can take advantage of them according to the size of your phone or music player. For big size, you can choose the two bands on the top and the bottom; for smaller size, then two nearby bands will do.