An electrostatic discharge (ESD) event caused when the user presses the equipment buttons can cause damage to the internal circuitry of the device.
Solution: PESD devices
Extremely low capacitance ESD protection devices, such as Raychem PESD devices, help shunt ESD away from sensitive circuitry in electronic devices without inducing signal distortion.
Read more about the Raychem ESD protection device: PESD