Liquid RC PO Box 3173 Nashua, New Hampshire 03061 United States of America. Spektrum XSEM1040B Firma 2 in 1 brushless Crawler Motor/Esc: 2300kv Ic3. Brand new item, sealed in original retail packaging. The Spektrum Firma Sensored 2-in-1 System is specifically engineered to be used with 10th scale Crawlers and Scalers. Featuring advanced Field-orientated Control (FOC) and professional drag brake performance and torque control, all while being fully waterproof. Pro-level Drag Brake performance and adjustability IP-67 Rated Waterproof System Compact for easy installation in most applications Ready to install no soldering required Integrated 40A / 160 A ESC In The Box (1) Spektrum Firma brushless Sensored 2-in-1 System 2300Kv (1) Product Manual. (1) Product Manual (1) 2S or 3S LiPo Battery with EC3 or IC3 Connector (1) Spektrum Transmitter. Application 1/10 Rock Crawler Auto Cutoff Yes BEC Voltage 6V/7.4V Adjustable, Continuous Current 4A (Switch Mode) Connector Type IC3 Forward Yes Input Voltage 2-3S LiPo, 6-9 Cells NiMh Maximum Burst Current 160A Maximum Continuous Current 40A Motor Size 550-Size Motor Type brushless – Sensored Number of Poles 4 Outer Diameter 1.46″ (37 mm) Overload Protection Yes Product Length 2.28″ (58 mm) Product Weight 201g (including wire plug) Programmable Yes Reverse Yes RPM/Volt (Kv) 2300Kv Shaft Diameter 0.125″ (3 mm) Shaft Length 0.63″ (16 mm) Water-Resistant Yes. WARNING: This product contains a chemical known to the State of California to cause cancer. Please, check your mailing address! I will not change your address after the sale is made. School children know their address, you should too. Save for later: Add to My Favorite Sellers and Stores. Other items: Lots of other parts are available. Always: Have fun enjoying your models. Item weight: 0.7000 pounds.