500 × 500
Source:https://www.ebay.com/itm/175414184003
1000 × 1000
Source:https://www.amazon.com/Smatree-Baseball-Release-Session-58-60cm/dp/B019Q8DH5Q
1000 × 721
Source:https://www.amazon.com/VGSION-Camera-Insta360-Garmin-Samsung/dp/B07QWT4F2T
490 × 490
Source:https://www.cool-mania.com/spy/spy-cameras/spy-camera-cap-with-full-hd-camera-wifi-control-via-app-in-smartphone
3024 × 3661
Source:https://actionhat.com/products/actionhat-do-it-yourself-kit
3264 × 3264
Source:https://www.worldeyecam.com/hcnewsboyhat-hidden-camera-hat-with-miscrosd-memory-card-slot.html
827 × 1000
Source:https://www.amazon.com/Fockety-Baseball-Recording-Recorder-Expansion/dp/B0CHZ5X7M8
287 × 400
Source:https://www.spygearco.com/BaseballHatSpyCameraKitwithDVR-lm.htm
1000 × 1000
Source:https://www.spysite.com/products/4k-uhd-baseball-hat-camera-wi-fi-wearable-spy-camera
528 × 710
Source:https://www.shapeways.com/product/YCGRTUJWX/hat-mount-gopro-hero-8-compatible
