Gmatrix via Amazon offers Prime members the Gmatrix Waterproof Universal Remote Control, model no. PC-1302AL, for $14.99. At checkout, it falls to $5.99. With free shipping, that's $4 under our April mention and the lowest total price we could find by $9. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $5.18.) This universal remote is 100% waterproof and features big button design.