The Panasonic ES-GA21 Pro-Curve ARC Blade Shaver is a linear -- or foil -- electric shaver that Panasonic designed specifically for shaving facial hair. Unlike a rotary electric shaver, which utilizes multiple rotating shaving heads, a linear shaver utilizes horizontally-oriented, vibrating blades, which have protective foils surrounding them. The Panasonic ES-GA21 has several other more detailed specifications which support and stand out as examples of the shaver's performance.
Blades
An array of three multi-fit blades underlies the Panasonic ES-GA21 shaver foils. As multi-fit blades, the blades can move independently of each other, allowing them to conform to changes in the contours of a user's face. The blades connect to a flexible head, which can pivot to accommodate different shaving angles. Panasonic sharpens all three of the shaver's blades using nanotechnology, which entails coating the blades with tiny particles. These particles are 100 nanometers or smaller, with a single nanometer equaling one billionth of a meter. The innermost blade of the Panasonic ES-GA21 is set at a 30-degree angle, which allows a user to shave with increased precision.
Charging
The Panasonic ES-GA21 is a cordless shaver, which derives its power from rechargeable alkaline batteries. Charging the shaver's batteries fully takes 1 hour. Fully-charged batteries can provide the shaver with up to 45 minutes of shave-time, which is equivalent to 15, 3 minute-long shaves. The Panasonic ES-GA21 also allows for a "quick charge," which requires 5 minutes of charge-time. A "quick charge" only provides the shaver with enough energy for a single shave, but can be helpful for users who are in a hurry and who have forgotten to fully charge their Panasonic ES-GA21 shavers.
Motor
At the core of the Panasonic ES-GA21 is a direct-drive electric motor. Unlike a variable-speed motor, a direct-drive motor does not use belts to transfer power from a shaver's motor to its "transmission" or energy-distribution mechanism. Instead, a direct-drive motor relies on a coupler, which transfers power more directly and with less noise. Because it has less moving parts, a direct-drive motor is also less likely to break down in comparison to its variable-speed counterpart. The Panasonic ES-GA21 shaver's motor is capable of 13,000 revolutions per minute, or RPM. In general, the higher a motor's RPM, the faster a shaver's blades can vibrate. Faster blade vibration equates to better cutting effectiveness.
Wet/Dry
The Panasonic ES-GA21 shaver has wet/dry functionality. This means a user can shave with water and shaving cream, or without water and shaving cream. The "dry" function is relevant for shavers who are in a hurry as well as for shavers who do not have access to a sink and other shaving amenities.
Extras
Non-essential components of the Panasonic ES-GA21 include a pop-up trimmer and a sonic vibration cleaning system. While the pop-up trimmer consists of a small, collapsible vibrating blade, which allows user to trim side-burns and other areas that require shaving-precision; the sonic vibration system shakes the shaver so that left-over hair particles move out of the shaver and do not clog up the motor or other internal components.
Tags: Panasonic ES-GA21, direct-drive motor, ES-GA21 shaver, Panasonic ES-GA21 shaver, allows user, electric shaver, multi-fit blades