1、Specially Designed Propellers: RC underwater thruster has specially designed propellers can provide effective and powerful thrust, making it having excellent underwater thrust and impact performance to ensure higher work efficiency. 2、Fully Waterproof Underwater Propeller: Waterproofed treatment on rotor and propeller, can be completely immersed in water for normal work. And it brings you much convenience. 3、Replacemen Part: RC underwater thruster is a wonderful upgrade replacement for the broken or old one, and it also can help better control your remote control boat. 4、Scope of Application: RC underwater thruster is applicable to nesting boat, trawl unmanned boat, remote control boat and duck boat. 5、Applicable People: RC boat underwater thrustert is preferred by the knowledgeable model hobbists and remote control enthusiasts. Item Type: RC Underwater Thruster Material: Steel, Copper, Plastic Color: As Pictures Shown Weight: Approx. 284g / 10.0oz Model: 545 50T Brush Motor Blade Diameter: Approx. 48mm / 1.9in Motor Size: Approx. 13.8x4.5x4cm / 5.4x1.8x1.6in Lithium Batteries: 2-4S Lipo Working Voltage: 7.4V-14.8V Maximum Continuous Power(W)/10S: 160W Maximum Continuous Current(A)/10S: 10A Thrust: 700-1000G Length of Outgoing Line: Approx. 800mm / 31.5in Plug: Approx. 3.5mm / 0.1in Application: Nesting Boat, Trawl Unmanned Boat, Remote Control Boat And Duck Boat 1 x Motor 1 x Hex Wrench 8 x Screw