This full featured, 6 function, hardwired decoder is a robust workhorse, capable of taking almost anything you can throw at it. Included is the TCS auto-adjusting BEMF for outstanding slow speed performance and hassle free set up. Also includes Quiet Drive for super quiet engine performance.Included is the TCS auto-adjusting BEMF for outstanding slow speed performance and hassle free set up. Also includes Quiet Drive for super quiet engine performance.  Dimensions: 0.661" x 0.969" x 0.217" or 16.79mm x 24.61mm x 5.51mm  Suitable for just about any HO scale locomotive.  This decoder is covered by the TCS Goof Proof one year, no questions asked warranty. TCS will repair/replace the decoder even if you accidentally damage it.Decoders should be sent directly to TCS and will be repaired or replaced at TCS' discretion. Alternative Decoders ESU LokPilot Standard ESU LokPilot 5