Rechargeable - Cordless runtime of 30 minutes, plus it operates while plugged in. When empty, the battery will recharge in 8 hours Worldwide Voltage - The shaver is compatible with 120/240 VAC and 60/50 Hz. Protective Head Guard - Keep the shaver head safe during travel and storage with the clip-on plastic guard Dual Flexing Heads - Get a close, comfortable shave with flexing rotary heads that adjust to the contours of your face Dual Track Blades - Rely on the durability of surgical steel blades to deliver a close, smooth shave