Key Benefits 2-in-1 ESC Motor Combo: Compact option for detailed scale builds where space is limited Advanced Sensored Motor Control: Great for slow speed driving and next level drag brake performance Industry Leading Waterproof Design: The Firma 2-in-1 Brushless Crawler Motor/ESC provides industry leading waterproof and dustproof operation for worry-free driving in mud, sand, snow and water Multi-point Protection: Over-current protection Automatic LiPo low-voltage cutoff Thermal protection Failsafe protection Features Pro-level Drag Brake performance and adjustability RPM/Throttle Matching enabled FOC (Field-Oriented Control) equipped Integrated 40-amp ESC (160amp burst) 2-3S LiPo/6-9 Cell NiMH input voltage range Industry Leading Waterproof Design Fully. Spektrum Accessories Firma 2 in 1 Brushless Crawler Motor/ESC: 2300Kv, SPMXSEM1040B. 2-in-1 ESC Motor Combo: Compact option for detailed scale builds where space is limited. Advanced Sensored Motor Control: Great for slow speed driving and next level drag brake performance. Industry Leading Waterproof Design: The Firma 2-in-1 Brushless Crawler Motor/ESC provides industry leading waterproof and dustproof operation for worry-free driving in mud, sand, snow and water. Automatic LiPo low-voltage cutoff. Pro-level Drag Brake performance and adjustability. FOC (Field-Oriented Control) equipped. Integrated 40-amp ESC (160amp burst). 2-3S LiPo/6-9 Cell NiMH input voltage range. Industry Leading Waterproof Design. Fully programmable with optional Spektrum ESC Programmer Box (not included). Developed and designed by Spektrum. Compact for easy installation in most applications. Ready to install – no soldering required. Adjustable high-power BEC (6V or 7.4V). Firmware updatable through the Spektrum ESC Programming Box. High heat resistant IC3 connectors, backwards compatible with EC3 connectors. The Ultimate Compact Crawler Solution. 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. The compact 2-in-1 design grants builders the ability to reduce clutter and components, giving you the most room for scale accessories and customization. The integrated design makes the size similar to a 550 can size motor, making it a easy drop-in option for most 1/10 scale crawler, scaler and trailer models. Available in a low speed 1400Kv option for extreme slow speed and high angle of attack performance. And a high speed 2300Kv for excellent control for trailers and rock bouncers. The Spektrum Firma Sensored 2-in-1 System features a high-precision magnetic encoder and rotor position sensor that provides excellent 1 to 1 control feel when driving at any speed and at any angle. Perfectly suited for trail driving, rock crawling competitions and rock racing setups. This advancement in sensored motor control allows the ESC to match your throttle input to the motors RPM with unmatched precision. Intelligent Speed And Torque Control. The Spektrum Firma Sensored 2-in-1 System provides a closed loop control, ensuring that the esc maintains torque and RPM levels even as driving conditions change. Giving unprecedented control when driving uphill or downhill and even when in wet or loose traction conditions. No matter the terrain, the Spektrum Firma Crawler system keeps you in complete control. Maximum Power Efficiency Provides Longer Battery Life. When driving with the Spektrum Firma Sensored 2-in-1 System, drivers are better equipped for the long trails ahead. The Spektrum Firma Sensored 2-in-1 System only uses the power it needs to match your desired throttle output, providing substantially more efficient current levels and extremely long battery life when compared with similar sensorless systems. Pro-Level Drag Brake Adjustment. The Spektrum Firma Sensored 2-in-1 System features a huge range of drag brake adjustability, allowing for drivers to expertly tune their crawlers and scalers depending on their driven train and vehicle weight. Allowing up to 200% drag power, no matter the setup, the Spektrum Firma Sensored 2-in-1 System can keep your vehicle parked at nearly any incline. The all-weather, waterproof design of Spektrum. ESCs allows them to perform in nearly any terrain under almost any conditions. Firma ESCs keep you going through dust, gravel, snow, and water. Using the Spektrum ESC Programming Box (version V2 required), you can easily change settings on the trail to suit driving conditions. An easy-to-use Smart Link USB Updating and PC Programmer app is also available. We do not sell used, opened, or damaged items. Some restrictions apply based on destination and item size. We can combine multiple items if you use the shopping cart. ORM-D and Lithium / Li-Po Battery Restrictions. Products of this nature include quarts of fuel, glues, paints, thinners, aerosol sprays, and certain lithium batteries. The mounting of engines and accessories, running fuel through engines, cutting or pushing out the balsa sheets in kits, and other similar actions constitutes used merchandise. Flammable or combustible materials or products (regardless of whether the item is open or unopened) such as: Nitro engines (if fuel has entered the engine), Nitro fuel, Unopened as well as opened, charged and / or used Lithium Ion / Polymer (LiPo) batteries and other Lithium-based batteries. Any type of opened, charged and / or used battery including LiPo, Nickel-Metal Hydride (NiMH), Nickel-Cadmium (NiCd), other Nickel-based batteries and / or Alkaline-based batteries. Sealed Lead Acid batteries. Paints, thinners, certain glues or cements/pastes. Aerosols or compressed gas canisters. Rockets, kits containing rockets with or without igniters, igniters, hobby fuel (both quart or gallon). When packing your order for return, please be sure all the original packing material and instruction papers and/or manuals are included. We will be unable to process your return if parts are missing, or if items are not packed properly to avoid damage to products and their boxes and/or packages. We are the home for all your hobby needs. At Omni Models, we help people have fun with hobbies. Providing an exceptional customer experience is a mission we take seriously. That’s why, when it comes to radio control fun, we don’t mess around. 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