Team Associated - ESS- DUAL+, Engine Sound System ASC70021C which make them perfectly suited

which make them perfectly suited for use as receiver batteries in nitro-powered vehicles

and enhanced corrosion resistance Hardened Steel construction

Lock-pin style 6061 aluminum wheel hex Clamp down on the axle pins so no more loosing pins

Front half of wheels (Matt black in color) x 2

Team Associated - ESS- DUAL+, Engine Sound System ASC70021C which make them perfectly suitedHas two opposing speakers for balanced sound and better diffusion. Four mounting holders make it easier to install on a variety of vehicles. Lightweight and compact in size, easy to install. Output is circuit, overload, and thermally protected. Features: Uses advanced DNS DCR algorithm to reproduce the sound of real engines Supports two sets of quick switching engine sounds Supports AUX channel that can simulate a variety of sounds such as alarm