--- product_id: 120745182 title: "MRT Transponder, Works with mylaps RC3 RC4 Through V4.4 System for RC car Racing." brand: "stormer hobbies" price: "26930 som" currency: KGS in_stock: true category: "Stormer Hobbies" url: https://www.desertcart.kg/products/120745182-mrt-transponder-works-with-mylaps-rc3-rc4-through-v4-4 store_origin: KG region: Kyrgyzstan --- # Compact 19x16x6mm size Dual stored ID numbers Ultra-light 4g weight MRT Transponder, Works with mylaps RC3 RC4 Through V4.4 System for RC car Racing. **Brand:** stormer hobbies **Price:** 26930 som **Availability:** ✅ In Stock ## Summary > 🏁 Race Ready, Pro Approved: The MRT Transponder that keeps you winning. ## Quick Answers - **What is this?** MRT Transponder, Works with mylaps RC3 RC4 Through V4.4 System for RC car Racing. by stormer hobbies - **How much does it cost?** 26930 som with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/120745182-mrt-transponder-works-with-mylaps-rc3-rc4-through-v4-4) ## Best For - stormer hobbies enthusiasts ## Why This Product - Trusted stormer hobbies brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Pros:** Used by the Stormer team and compatible with all major RC brands—Associated, Xray, Losi, CRC, Serpent—join the elite racers who trust MRT. - • **Dual-ID Flexibility:** Switch effortlessly between two factory-stored PTX ID numbers—customize your race setup with zero downtime. - • **Waterproof Durability:** 100% waterproof design means your transponder keeps pace rain or shine, no compromises on race day. - • **Featherlight & Ultra-Compact:** At just 4 grams and 19x16x6mm, it fits snugly into even the tightest RC car chassis for sleek, unobtrusive performance. - • **Seamless AMBrc Compatibility:** Works flawlessly with AMBrc2, AMBrc3, and RC4 systems up to v4.4—stay ahead without the v4.5 drone update hassle. ## Overview The MRT Transponder is a compact, lightweight, and waterproof timing device designed for RC car racing. Compatible with AMBrc2, AMBrc3, and RC4 systems up to version 4.4, it features dual stored ID numbers for flexible race configurations. Trusted by professional teams and compatible with all major RC car brands, it ensures precise lap timing in a sleek, durable package. ## Description Perfect with all AMBrc systems and RC4 up to v4.4 (will not work with the v4.5 Drone System update). The Stormer team use the MRT transponders ourselves. So you know they're good! Pop them in all your favorite cars. Associated, Xray, Losi, CRC, Serpent, you name it! MRT Transponder, mPTX-ID 100% waterproof These transponders from MRT are lightweight and small in size. This makes them easy to fit into the smallest, tightest areas. Size: 19 x 16 x 6mm Weight: 4 grams The PTX ID number of each transponder can be changed to an alternative ID number. Each individually numbered transponder has its 'custom' ID number written on the supplied instruction sheet with the an alternative number also available. PTX transponders are supplied with 2 stored ID numbers and come factory set on the custom ID. It is possible to switch from the custom number to the other number if required. To use the PTX it should be connected to a power socket on a receiver or to a battery pack. The LED will light up to show the transponder is operating. When setting the number (or checking the number that is set) the LED will flash to show the number selected, or the number that has been set. Operating Voltage: 2.1V - 16V DC Lead Length: about 190mm from Stormer Hobbies Mounting: Standard 3 Hole (same as AMB/MyLaps) Compatibility: AMBrc2, AMBrc3 and RC4 systems. ## Features - Perfect with all AMBrc systems and RC4 up to v4.4 (will not work with the v4.5 Drone System update). - Size: 19 x 16 x 6mm - Weight: 4 grams - PTX transponders are supplied with 2 stored ID numbers and come factory set on the custom ID. It is possible to switch from the custom number to the other number if required. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07Q1WDMMD | | Best Sellers Rank | #102,388 in Toys & Games ( See Top 100 in Toys & Games ) #370 in Hobby RC Cars | | Customer Reviews | 4.7 4.7 out of 5 stars (150) | | Item Weight | 1.58 ounces | | Manufacturer | MRT | | Manufacturer recommended age | 14 years and up | | Package Dimensions | 5.2 x 3.5 x 0.2 inches | ## Images ![MRT Transponder, Works with mylaps RC3 RC4 Through V4.4 System for RC car Racing. - Image 1](https://m.media-amazon.com/images/I/51lOUXRBNXL.jpg) ## Frequently Bought Together - MRT Transponder, Works with mylaps RC3 RC4 Through V4.4 System for RC car Racing. - Zeee 7.4V Lipo Battery 2S 50C 5200mAh Lipos Hard Case with Dean-Style T Connector for RC Car Trucks 1/8 1/10 RC Vehicles(2 Packs) - Zeee Fireproof Explosionproof Large Capacity Battery Storage Guard Pouch for Lipo Charge & Storage (8.46 x 6.5 x 5.71 in) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kg/products/120745182-mrt-transponder-works-with-mylaps-rc3-rc4-through-v4-4](https://www.desertcart.kg/products/120745182-mrt-transponder-works-with-mylaps-rc3-rc4-through-v4-4) --- *Product available on Desertcart Kyrgyzstan* *Store origin: KG* *Last updated: 2026-09-07*