1. Planetary heads are made with gearbox, A gearbox is made of aluminum alloy, Very durable, The gearbox cover is industrial roll molded, and the cover is elastic and not easy to be out of shape
2. Instant change system magnetic metal plates with removable velcro attachments.
3. The configuration is quite complete, including a USB interface, mobile phone bracket, LED light, and 3D sprinkler.