Califone’s 600 Ohm Dynamic Wired Microphone is an affordable way to communicate your message to large audiences. The unidirectional, dynamic handheld microphone packs 600 Ohms of impedance and has an 80-10,000 Hz frequency response. Comes with a 15-foot cable that allows you to walk about the room as you speak. Your dynamic wired microphone also includes a ¼" plug connection and microphone clip.