The SPM Vibration EAR13 is a headphone set equipped with a single connected earphone. It is designed to fit most safety helmets available in the market and features standard snap-mounts, allowing for easy adaptation to specific helmets through simple manipulation.

The EAR13 headphones are compatible with the SPM Bearing Checker, ELS14, and Leonova Emerald/Diamond devices.

The headband includes individually sprung wires made of stainless sprung steel, ensuring even pressure distribution around the ears. These steel wires maintain their resilience better than plastic across a wide temperature range. The design incorporates low, two-point fasteners and allows for easy height adjustment without any protruding parts.

Soft, wide foam and fluid-filled sealing rings with built-in pressure-evening channels provide low pressure, effective sealing, and optimal comfort. The connection cord, made of soft spiral polyurethane, extends from 0.75 to 1.4 meters and is equipped with a 3.5mm stereo plug.