David Clark H3440 Dual-Ear Ground Support Headset | 40583G-01

David Clark H3440 Dual-Ear Ground Support Headset | 40583G-01

The David Clark H3440 is a rugged, dual-ear, behind-the-head headset designed for clear communication and noise protection in high-noise environments. Ideal for ground crew, maintenance, and industrial personnel working under helmets or hard hats.

• Behind-the-head, dual-ear design fits comfortably under helmets
• M-7A electret noise-canceling microphone for clear voice transmission
• Flexible boom mic with left/right positioning for user convenience
• Comfort-Gel undercut ear seals for passive hearing protection and comfort
• 36-inch straight cord with standard 1/4" plug for direct radio or intercom connection
• Noise Reduction Rating (NRR) of 23 dB for effective noise attenuation

Designed for professionals operating in noisy, demanding environments, the David Clark H3440 (Part No. 40583G-01) offers reliable communication and hearing protection. The dual-ear design enhances audio clarity while isolating unwanted ambient noise, making it perfect for ramp agents, maintenance crews, and tug operators.

The headset’s behind-the-head design accommodates hard hats and other protective gear, while the flexible M-7A microphone boom allows precise placement on either side. Comfort-Gel ear seals provide long-lasting comfort during extended use, and the rugged construction ensures durability in harsh work conditions. A 36-inch straight cord with standard plug enables easy integration with aviation radios and intercom systems.

• Part Number: 40583G-01
• Headset Style: Dual-ear, behind-the-head (BTH)
• Microphone: M-7A electret, noise-canceling
• Mic Boom: Flexible, adjustable for left/right use
• Cord: 36-inch straight cord
• Connector: 1/4" standard stereo plug
• Noise Reduction Rating: 23 dB
• Comfort Features: Comfort-Gel ear seals
• Use Cases: Ground support, ramp crew, maintenance, industrial communication
• Helmet Compatible: Yes, fits under hard hats or helmets