Here is a fun little R/C boat for pulling pranks on your friends. The Crocodile Head RC Boat is also useful for keeping geese away from your pond. It is operated with a 2.4G transmitter with a range of 50 meters. This Crocodile RC toy lasts up to 20 minutes on battery.
This RC toy runs on a 3.7V 500mA lithium battery and has a low voltage protection mechanism.