ZLL SG906 MAX2 4K Drone 3-Axis Gimbal Camera GPS 5G WIFI Professional Obstacle Avoidance Quadcopter $300-$400 and the rear two wheels

and the rear two wheels can also be independently controlled to swing up and down

(Optional)

The excavator does come with a rock breaker

5 CM (Unfolded)

ZLL SG906 MAX2 4K Drone 3-Axis Gimbal Camera GPS 5G WIFI Professional Obstacle Avoidance Quadcopter $300-$400 and the rear two wheelsZLL SG906 MAX 2 4K Drone 3 Axis Gimbal Camera GPS WIFI Professional Obstacle Avoidance Quadcopter Model Number: ZLL SG906 MAX 2 Drone ZLL SG906 MAX 2 Camera Features: 4K HD Video Recording Sensor Size: 1 3. 13 inches ZLL SG906 MAX 2 Aircraf Operating Frequency: 5GHz Camera Integration: Camera Included ZLL SG906 MAX 2 Remote Distance: 1200 3000M FPV Operration: Yes Fps: 25*fps ZLL SG906 MAX 2 Camera Stabilization: Gimbal Image Stabilizer ZLL SG906 MAX