30A Brushless speed controller ESC MultiCopter - X-copterSpecification: Compatible with: 400-450 helicopters / or - Multi RC HelicopterOutput: Continuous 30A, 40A up to 10 Secs.Input Voltage: 2-3cells lithium battery or 5-9 cells NiCd/NIMh battery. BEC: 2A / 5V (Linear mode). Max Speed: 210,000rpm for 2 Poles , 70,000rpm for 6 poles , 35,000rpm for 12 poles . (: BrushLess Motor)With T plug and 3.5mm banana connectors. Note: This ESC is not to flash the firmware.Color: MulticolorMaterial: plastic+metalSG90 9G -Servo:This is the most mini servo. Only weighs 9 and gives you a 1.5 kg/cm . Pretty strong regarding size. Suitable for beam type robots.Key features:Translucent bodyLightweightLess noiseSG90A 9G servo parameters:Size: 21.5mmX11.8mmX22.7mmWeight: 9 gramsNo load speed: 0.12 sec / 60 (4.8 V)Locked- : 1.5-1.7kg/cm (4.8V-6V)Operating temperature: -30~~+60 degrees CelsiusDead zone setting: 5 microsecondsWorking voltage: 4.8V-6V 2200kv Motor Specification:KV: 2200Ri(M ): 0.Battery: 2-3Li-PoMax Power: 342WTest Prop: 7x3/7x4Motor Size: 27.5x38mm/1.08 inchx1.5 inchShaft Diameter: 3.17mm/0.12 inchPackage Contents:1 x 30A Brushless ESC1 x 2200kv Motor2 x SG90A 9G servo1 x Accessories SetOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed is +/- 1-3cm.