Thanks for your support, they are spare parts. The tiny red O rings are for waterproof, it is connected between the male connector and female connector of the Gps.lens, remote control and power converter. We offer 4 pcs in case of any missing rings.😃
Thanks Jade 😄
Dear Daniel
Thanks for your support, they are spare parts. The tiny red O rings are for waterproof, it is connected between the male connector and female connector of the Gps.lens, remote control and power converter. We offer 4 pcs in case of any missing rings.😃