The OneBlade Pro is versatile, able to trim, edge, and shave any hair length. It doesn't shave as closely as a traditional blade, which keeps your skin comfortable. The OneBlade Pro is more advanced than the original, with a powerful Li-ion battery and 12 length settings. It can be used wet or dry, and the replaceable blade lasts up to 4 months (based on 2 full shaves per week, actual results may vary). The package includes 1 OneBlade, 1 handle with an LED display, 1 12-length comb, and 1 power charger.