Welcome to our store! Precise Design: This brushless motor for RC helicopters features a precise design with maximum energy conversion. Reliable Performance: This brushless motor for RC helicopters, with excellent heat dissipation, ensures reliable operational performance. Stable Operation: This brushless motor for RC helicopters provides stable operation, high efficiency, and strong torque. Aluminum Alloy: This brushless motor for RC helicopters is made of premium aluminum alloy and brass, robust and durable. Waterproof Dustproof: This brushless motor for RC helicopters is waterproof, dustproof, low energy consumption, and low noise. Item Type: Brushless Motor for RC Helicopter Material: Aluminum Alloy and Brass Color: Black and Blue KV Value: 350KV, 1700KV (Optional) Battery Size: Approx. 37 x 48 mm / 1.45 x 1.88 inches (excluding wires and shafts) Shaft Diameter: Approx. 5 mm / 0.19 inches Application: RC Remote Control Helicopter, 50kg Electric Scooter Balance Car, etc. KV Voltage No-load Current No-load Speed rpm Max Current Max Power Applicable Lithium Battery 350kv 30v 0.3A 10600 21A 630W 4-8S 1700kv 11.1v 2.9A 11700 65A 1850W 2-4S 1 x Brushless Motor for RC Helicopter 1 x Instruction Manual Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best customer service.