Lol, that's a bargain so buy two. You'll always want a spare
I'm amazed the range they have, although it would be concering if some weirdo started using it to peep through windows looking at your Mrs. Baseball bat time!, smish smash, it's gone in a dash. Just as soon as I've climbed the ladder.
I loved the Superman video and watched it again last night. Great work and looks like it really didn't take them that long to make. Who needs George Lucas or James Cameron to make a sci fi action video when you have one of these.