The UDI U002 comes equipped with a water cooling system to prolong the life of the boat. Advanced 2.4GHz automatic code pairing technology allows you to control different boats use different frequencies. When the 2.4G Signal becomes weak, the transmitter will detects and flashes an out-of-range light. The self-righting feature lets you command your boat back into action if it capsizes. When the battery runs low, the transmitter will sound "di, di, di" this warns you about 1 minute left, so you can sail it back for retrieval.

Product  Size
Body Length: 16.7in/424mm
Body Width: 4.5in/114mm
Body Height: 4.7in/119mm

Specifications:
Frequency: 2.4GHz
Transmitting Distance (Outdoor And Unobstructed): 150m
Speed: Up to 15mph
Battery: 3.7V 1500mAh Li-ion Battery
Play Time: 7-9mins
Operating Temperature Range: 14° F~ 104° F

Package Contents:
1 x UDI U002 RC Boat
1 x 2.4GHz Transmitter (does not include 1.5v AA batteries)
1 x Spare Propeller
1 x 3.7V 1500mAh Li-ion Battery
1 x USB Charger
1 x Boat Stand
1 x User Manual