Tips you should know: - Ensure the top cover tamp down tightly before running: fasten the top cover forwards and hear "dong", then button up it backwards. That indicates it is locked tightly. - Put on the water first and then turn on the controller, the screw propeller won't turn when it was on the land, the boat ONLY works on the water. - Open the top cover and remove the battery after running to ensure the inner surface of boat is dry, otherwise it will shorten the lifetime of the boat. Specifications: Functions: Turn left/right, Forward/backward, 180 degrees accurate orientation Remote Control: 2.4GHz Wireless 150 meter distance control,free shift for right and left hand Remote Control Channel: 4-Channels Battery capacity: 7.4 V 600mah lithium battery Transmitter Power: 4 x 1.5V AA battery(not included) Playing time: 6 - 8mins Charging time: 45mins Product Size: 14.2 x 3.7 x 3.0 inches Package size: 14.6*11.0* 4.7 inches Weight: 300g Package Contents: 1x RC Boat 1x Lithium battery 1x Transmitter controller 1x Charger 1x User manual 1x supporter set 1x Lubrication tools set 1x Spare propeller