This hands-free headset is plugged in Iridium 9505A, 9555 and Extreme 9575 phones or compatible docking stations for hands-free operations.

FEATURES:

• One earbud design
• Retractable ~3 feet cord
• Mute microphone button
• 2.5mm (3/32") audio plug
• Compatibility: Iridium 9505A, 9555, Extreme 9575
• Iridium P/N: HFHS0601

The headset is included with the Iridium 9555 & 9505A Complete Phone Kit, but you can purchase more as replacement or extra units.