Rollei Flashy One Mini Flash
16.8 Ws, GN16 · single-pin hot shoe · 1/128 to 1/1 in 0.3 steps · flash duration down to 1/50,000 s · 1250 mAh, up to 500 full-power flashes · USB-C
A compact manual flash with fine third-stop control, very short flash durations and a rechargeable battery. On Amazon.com it ships from Amazon Germany at about $56.
Best for: Photographers with several camera brands who want one small, precise manual flash.
≈ $56