The i-LIMB Pulse is so called because it uses a pulsing technology to provide increasing and controllable grip strength to each individual digit.
When the hand closes on an object, the user has the option to use a pulsing effect to apply additional grip force, allowing the hand to grip objects very tightly. Touch Bionics says this increased grip strength is good for applying greater force for daily activities such as tying shoelaces, gripping a light switch cord or doing-up a belt.