Features 1、High efficiency 540 motor provides submarines with strong power. 2、The water cooling system cools the running motor, which can reduce the loss of the motor and extends its service life. 3、With distance indicator. There will have warming when the boat be controlled over distance 4、Double layer waterproof. Spring water shape design. 5、2.4Ghz frequency provides more accurate operation and ensure multiple boats play together without interference. Features: High efficiency 540 motor provides submarines with strong power. The water cooling system cools the running motor, which can reduce the loss of the motor and extends its service life. With distance indicator. There will have warming when the boat be controlled over distance. Double layer waterproof. Spring water shape design. 2.4Ghz frequency provides more accurate operation and ensure multiple boats play together without interference. The cover inside the boat to the boats accessories invisible. Looks more clear and tidy outside Specification: Condition: Brand New Type: RC Model Vehicle Material: Plastic + Metal Optional Color: Red, Yellow, Black Frequency: 2.4GHz Ship Battery: 7.4V, 1500mAh LiPo Battery (Included) Charging Time: 150 min Remote Controller Battery: 4 * AA Batteries (Not Included) Remote Control Distance: 200 m / 656 ft Playing Time: 8-10 min Highest Speed: 35km/h Channel: 4 Suitable Age: 14 yrs+ Function: Moving Forward, Moving Backward, Turning Left, Turning Right Size: Approx. 47* 12 * 13.5cm / 18.5 * 4.7 *5.3 in Weight: Approx.1430 g / 50.4 oz Package List: 1 * RC Ship 1 * Transmitter 1 * Manual 1 * USB Plug 1 * Lipo Battery 1 * Propeller 1 * Hexagon Wrench 1 * Display Stand 1 * Protect Ball Head Package List 1 * RC Ship 1 * Transmitter 1 * Manual 1 * USB Plug 1 * Lipo Battery 1 * Propeller 1 * Hexagon Wrench 1 * Display Stand 1 * Protect Ball Head