40A Brushless ESC 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.Compatible with and NiMH battery. Timing can be changed to be suitable for different brushless motors. Full protection: Low voltage cutoff protection / Over-heat protection / Throttle signal loss protection.40A Brushless ESC Specifications:Types: long, shortCurrent: 40AOutput capacity: continuous current 40A, short-time current 55A (not less than 10 seconds) input: 2-4 lithium batteries(Not Included)BEC output: 5V@3A (linear regulator mode - linear mode)Maximum speed: 210,000 rpm for 2-pole motor, 7000 rpm for 6-pole motor, 35,000 rpm for 12-pole motorSize: (Approx) 68x25x8mmSG90 9G -Servo:This is the most popular mini servo. Only weighs 9 gram and gives you a 1.5 kg/cm torque. Pretty strong regarding its size. Suitable for beam type robots.Color: black + orangeMaterial: plastic+metalKey features:Translucent bodyLightweightLess noiseSG90A 9G servo parameters:Size: 21.5mmX11.8mmX22.7mmWeight: 9 gramsNo 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 CelsiusDead zone setting: 5 microsecondsWorking voltage: 4.8V-6VA2212 1400kv Motor Specification:KV: 1400Ri(M ): 0.033Battery: 2-3Li-PoMax : 342WTest Prop: 7x3/7x4Motor Size: 27.5x38mm/1.08 inchx1.5 inchShaft Diameter:3.17mm/0.12 inchPackage Contents:1 x 40A Brushless ESC1 x A2212 1400kv Motor2 x SG90A 9G servo1 x Accessories SetOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.