SEAKING V4: Dominate the water with explosive acceleration and top speeds!p>Includes:(1) HOBBYWING SEAKING 90A V4 ESC(1) ManualFeatures:Excellent waterproof performance (IP67). Users can use it directly without any waterproof treatment (note: if water enters after use, please blow dry each plug to prevent rusting).Built-in ultra-powerful switch mode BEC and adjustable voltage, supporting high torque and high voltage servos.The built-in (integrated in the switch) Bluetooth function allows for setting and upgrading the esc by directly connecting to the mobile app, without any additional devices, making it simpler and more convenient.Data logging function to view various running data on the HW LINK app.Supports the firmware upgrade of the ESC, you can enjoy the latest functions.Specifications:Cont./Peak Current: 90A/360ALiPo Cells: 2-4SBEC Output: 6V/7.4V/8.4V, 8ASize (w/o water-cooling pipe): 60x36.3x22.5mmWeight: 115.6g(w/ wires & output connectors)Inner/Outer diameter of water-cooling pipe: 3.0-5.5mmProgramming Method: LED, LCD G2/PRO, OTABoat Applicable: Length: < 80cm