iPhone and iPod users may experience a “small and quick” shock via their earbuds due to a buildup of static electricity, Apple warned Monday.

People listening to one of the devices in extremely dry air are most at risk of receiving a static electricity shock through the ear buds, according to a warning posted on Apple’s Web site. The post likened the condition to the discharge that occurs when a person drags his or her feet across a carpet then gets a shock by touching a door knob.

However, Apple asserted that this condition did not necessarily indicate that Apple’s equipment was malfunctioning.

“This condition is not limited to Apple hardware and static can potentially build up on almost any hardware and could be discharged using any brand of earbuds,” Apple said.