Behind the Head Style (BTH)

• Noise-shielded M-77 electret microphone for clear communication
• BTH style for applications requiring hard hats or protective headgear
• Foam-filled ear seals for maximum comfort
• Rugged construction
• Flex boom for easy, precise microphone placement
• 30 in. straight cord
• Noise Reduction Rating (NRR): 23 dB