Features: - SmartFoil technology shaves even hair growing in different directions. - Rotating cap for effective protection with a simple twist. - Precision trimmer for a precise moustache and beard shape. - Skin-friendly flexible trimmer head adapts to the contours of your face for a close and comfortable shave. - Can be used for trimming. The Braun M-90 Portable Shaver comes with an extendable blade for trimming longer hair, so you can maintain your moustache and beard shape wherever you go. - Operated by AA batteries.