Panasonic offers its Panasonic Wet/Dry Nose and Ear Hair Trimmer, model no. ER430K, for $14.99 with free shipping. That's the lowest total price we could find by $4. It features a micro-vacuum system and stainless steel blades, and runs up to 90 minutes on one AA battery (not included).
Note: This item is backordered, but can be ordered at this price for delivery when available.