Walmart offers the Panasonic Vortex Wet/Dry Nose and Facial Hair Trimmer, model no. ER-GN30-K, for $10.24. (Amazon charges the same with free shipping for Prime members.) Opt for in-store pickup to avoid $4.97 the shipping fee. That's the lowest total price we could find by $5, although we saw it for slightly less a month ago. It features a dual-edge blade and requires one AA battery (not included).