WORX Robotic Lawn Mowers | Landroid Anti-Collision System

Details
Uses ultrasonic detection to sense and navigate around obstacles other robotic mowers would bump into.
Helps Landroid navigate without collisions to prevent damage to trees, outdoor furniture and other objects in your yard.
Obstacle avoidance allows Landroid to better maintain your lawn without interrupting its algorithm.
Easy to install, simply screws to the top of your Landroid.
Compatible Models – WR140, WR147, WR150, WR155, WR165