Features: Wide Range Application: All new R/C winch remote controller receiver could for SCX10 TRXA4 & most toy R/C car crawler of 1/10 scale wireless winch, use as the replacement part of your R/C toy accessories. R/C Crawler Winch Remote Controller Receiver System: A perfect upgrade modification winch controller for your upgrade R/C toy, especially for toy R/C crawler car toys, accessories of your electrical toys which offer a for fresh new service cycle with great performance. Speciality Design: The new 4CH wireless remote controller, adding two set of LED light control switches, solve the problem of insufficient remote control channels, and the C,D switch channels is added to the strobe mode bring more fun, flexibility and high sensitivity, input voltages 6-11v, more durable & stability for better performance to improve for play experience. High Quality Material: Made by high quality & durable plastic & metal, wear resistant of abrasion and erosions, more stable with good performance for R/C toy parts. Easy Installation: Applicable for most R/C car toys requirements and easy to install and change by your own, if you need any further instructions please do not hesitate to contact with us. Specifications: Material: Metal, Plastic Product Dimension: approx. 46 x 41 x 22mm/1.for 81 x 1.61 x 0.86 inch, wire length 20cm/7.87 inch Input Voltages: 6-11V Net Weight: approx. 140g/0.11 pound Remote Control Distance: 20 meters Package Includes: 1 x Remote Control Car Winch Remote Controller Receiver System (R/C winch NOT included) note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.