Conair for Men i-Stubble - The Ultimate in Stubble Control. Electro-chemically Formed Blades for Extreme Sharpness Durability & Accuracy. Safe on Sensitive Skin. Unique Floating Head Contours to the Curves of Your Face for Exceptional Accuracy and Comfort. Advanced Power Performance with Long-lasting Rechargeable Dual Battery System. Rapid Charging System/90-minute Charge Provides 45-minute Use. Ergonomic Design. Improved 24 total settings with manual locking system.