Cobra CB-WIREDHF 2.5/3.5mm Handsfree Wired Over-The-Head Style Headset with Inline Controls and Adjustable Boom Microphone - Retail Packaging - Black Works with most cell phones, includes 2.5mm and 3.5mm Jacks No charging needed, just plugs directly into your phone Adjustable headband and boom microphone for a customized and comfortable fit Inline call controls Meets hands free law requirements, allowing you to drive safely with both hands on the wheel.