Black & Decker 4.0v Max Gyro

Smartphones are becoming the norm, so are gyroscope-equipped devices. Even electric screwdrivers, as shown by the 4.0v Max Gyro from Black & Decker. It senses the twist on your wrist which in turn translates into the speed of rotation. Twist your wrist to the left and the driver rotates the opposite way, before stopping when you twist back to the vertical. It comes with its own LED light for shining in the dark and the Li-ion battery should last for up to 18 months before recharging. Available in October. $40.

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