The S-R1 diffuser adapter is a specially designed round shape adapter for connecting and diffuser Built-in mesh rubber pad, it can tighten the camera light and wear and tear The top knob is adjustable and can be used to install different sizes of set-top lights, easy to use With this adapter, you can install AK-R1 round lamp holder accessories (not included) on the camera to create various lighting effects Suitable for V860II/V850II/TT685/TT600 Series and other on-camera