When comparing products for vehicle security and everyday key organization, consider ID46 Chip 315/433Mhz 7937E/7952E Smart Keyless Go Remote Key Circuit Board For C in the car anti-theft and key accessories collection. Use the image gallery and specification fields to compare the listed shape, layout and intended application. Compare the named id46 chip 315 433mhz 7937e configuration with the photos and specifications of other car anti-theft and key accessories. Available selections shown in the file include color and number of buttons: Keyless 315, Without Keyless 433, and Without Keyless 315. Use the listed measurements and images to verify the exact product version, placement and compatibility.