Check the listing for details. Theta Servos Razor-C1 Brushless High Voltage Servo [TS-RC1]. Condition: New. Listed at 129.99 USD. The Razor C1 Theta Servo is a full size brushless servo that is capable of handling high voltage of up to 8.4V. The high torque brushless servo delivers incredible power and can be used for RC helicopters, airplanes, cars, and trucks. Featuring NFC technology, the Razor series of servos can tune and optimize performance through an Android device. Settings such as servo centering (servo offset), refresh rate, acceleration, and PID control loop are all available for tuning. Features: High voltage compatibility Brushless motor Metal gears Precision centering NFC Wireless tuning via Android devices 25T Output shaft All black cables Neutral position: 760uS | 1520uS - Selectable Sanwa SSR Compatible Specifications: Operating Voltage: 5V - 8.4V Torque: 2.6A: 6V: 374 oz/in (27kg-cm) 7.4V: 471oz/in (34kg-cm) 8.4V: 499 oz/in (36kg-cm) 5A: 6V: 513 oz/in (37kg-cm) 7.4V: 610 oz/in (44kg-cm) 8.4V: 666 oz/in (48kg-cm) Speed: 2.6A: 6V: 0.084 sec/60 7.4V: 0.071 sec/60 8.4V: 0.06 sec/60 5A: 6V: 0.079 sec/60 7.4V: 0.067 sec/60 8.4V: 0.056 sec/60 Weight: 73g (2.57 Oz) Motor Type: Brushless Spline: 25T About Us | View Store