SPMXGPS100 GNSS Wireless GPS Speed Meter & Data Logger.What stands out Supports GNSS (Global Navigation Satellite System) and GPS (Global Positioning System) for Improved Positional Accuracy Supports Metric and Imperial Measurement Internal Antenna Built-In Memory Lightweight Small Size Includes Two Silicone Protective Cases What comes in the box (1) GNSS Wireless GPS Speed Meter and Data Logger (1) USB-C Charge Cable (1) Orange Silicone Protective Case (1) Black Silicone Protective Case (1) Manual Specifications Product Length 1.6" (41 mm) Product Width 1.5" (38 mm) Product Height 0.63" (16 mm) Product Weight 1.23oz (35g) Frequency 10 Hz Manufacturer part number SPMXGPS100. Checking a part against a model you already own? Send us the number and we will confirm the fit before you buy.Why buy it hereRC Hobby Pros is a real hobby shop in Katy, Texas — not a drop-shipper. We have been in RC for 30 years, we stock parts for what we sell, and we fix what you break. Every vehicle gets checked before it leaves the counter and we will walk you through the first run. Come see it at 555 S Mason Rd, Katy, TX 77450 or call 346-365-2987.