Features: 100% brand new and high quality It adopts 2.4G radio 2.4 G wireless automatic frequency pairing technology to pair frequency and assign ID automatically. Its appearance design meets the requirement of Human Engineering and easy to handle. The trim button is designed to adjust flight attitude and the LCD display screen can show complete fight data. 2.4G wireless technology features quick response, long control distance, excellent anti-interference performance, low power consumption and also supports multiple models competition. The UDI012 is a wireless racing boat that is fast, fun and easy to use. Its stylish design is nice to look at and it really performs for a boat of this size. This model includes a 390 magnetic motor drive system Lithium-ion battery, for speeds of up to 30KM/H. The boat and transmitter take advantage of advanced 2.4GHz automatic code pairing technology to control the boat over long distances. Being completely ready to run, it is great for both beginners and experienced boaters alike. The motor, ESC and steering servo are all pre-installed.Specifications: Model: UDI002 Navigation hours: 7-9 minutes Motor Model: RS390PM Indoor Hovering: Enabled by default Operating Temperature Rang: -10 - 40 C Main Color: Green Material: Plastic Suitable ages: Above 14 Years old Controlling distance: about 150m Speed: Up to 30KM/H Turning Radius: 2.5m Remote control frequency: 2.4GHz Battery for boat: 7.4V 1500mAh Battery Size: 69.5 * 38 * 19mm / 2.7 * 1.5 * 0.7in Charging time: about 200 minutes Transmitter battery: 4 * 1.5V AA batteries (not included) Size: 428 x 113 x 80mm/16.9 x 4.6 x 3.1 inch Package size: 473 x 320 x 140mm/18.6 x 12.6 x 5.5 inch Net weight: 836g Package weight: 1334gPackage Content:(with retail package) 1 * UDI UDI002 RC Boat 1 * Radio Controller 1 * USB Charge cable 1 * Propeller Unit 1 * 7.4V 1500mAh Battery 1 * Boat Holder 1 * User Manual (English) Caution: Don't over-charge, or over-discharge batteries. Don't put it in the high temperature condition. Don't throw it into fire.