The operator should distinguish between "up and down" and "east, west, north and south" positions, and then press the remote control to avoid danger due to improper operation.
Operators should distinguish between "up and down" and "East, West, North and South" positions, and then press the remote control to avoid danger due to improper operation.
Operators should distinguish between "up and down" and "east, west, north and south" positions, and then press the remote control to avoid danger caused by improper operation.