Plantronics S12 telephone headset system offers hands-free convenience and comfort. Includes a 2-in-1 convertible headset for over-the-head stability or over-the-ear convenience, a noise-canceling microphone for superior sound clarity and the Firefly in-use indicator light that lets others know you are on the phone.

• Connectivity Technology: Wired
• Sound Mode: Mono
• Impedance: 200 Ohm
• Minimum Frequency Response: 200 Hz
• Maximum Frequency Response: 4 kHz
• Earpiece Design: Behind-the-neck
• Earpiece Design: Over-the-head
• Earpiece Design: Over-the-ear
• Earpiece Type: Monaural
• Microphone Technology: Noise Cancelling
• Microphone Design: Boom
• Weight (Approximate): 1.45 oz