Features: Safety arming feature: Regardless the throttle stick position, the motor will not spin after battery connected. Throttle calibration funtion: Throttle range can be calibrated to be compatible with different transmitters. User programmable. Multiple procedure methods supported: transmitter stick, LED procedure Card. Very easy to procedure the ESC at home or at the flying field. Timing can be changed to be suitable for different brushless motors. This is the most popular mini servo. Only weighs 9 gram and gives you a 1.5-1.7kg/cm (4.8V-6V) torque. Pretty strong regarding its size. Full protection: low voltage cutoff protection / over-heat protection / throttle signal loss protection. Specification: ESC Parameters: Continuous: 30A Burst: 40A up to 10 Secs Input Voltage: 2-3cells Lithium Battery or 5-9 Cells /NIMh Battery BEC: 2A / 5V (Linear Mode) 9g Servo Parameters: Size: 21.5mmX11.8mmX22.7mm Weight: 9 grams No Load Speed: 0.12 sec / 60 deg (4.8 V) Locked-rotor Torque: 1.5-1.7kg/cm (4.8V-6V) Operating Temperature: -30~~+60 degrees Celsius Dead Zone Setting: 5 Microseconds Working Voltage: 4.8V-6V Motor Parameters: KV: 1400KV Ri(M ): 0.033 Battery: 2-3Li-Po Max Power: 342W Test Prop: 7x3/7x4 Motor Size: 27.5x38mm Shaft Diameter: 3.17mm Package Information: Package Size: 25*15*3cm Package Weight: 130g Plastic Package Packing List: 1* 1400KV Motor 1* 30A ESC(XT60 Plug) 2* 9g Servo 2* 8060 Propeller 1* Some Other Fittings