Etymotic Research ERHD-3-SAFETY HD•3 OSHA Compliant Noise-Isolating Safety Earphones

Designed by the company that invented in-ear earphones, Etymotic Research's HD3 noise-isolating, high-definition Safety Earplugs + Headset + Earphones are designed as reduced-output earphones, engineered especially for safe listening while providing exceptional sound quality. Hearing risk is minimized, regardless of the portable players' volume level. Like earplubs, HD•3 noise-isolating, high-definition Safety Earplugs + Headset + Earphones are designed as reduced-output earphones, engineered especially for safe listening while providing exceptional sound quality. Hearing risk is minimized, regardless earphones block sound to reduce external noise and limit the amount of sound that reaches the eardrum.

Noise Reduction with HD•3 Earplugs + Headset + Earphones - These earphones, when used at full volume on portable music players, is within OSHA-Permissible Exposure Limits for 10-½ hours per day, up to 52-½ hours per week. Ambient noise levels of up to 102 dB with the 3-flange eartips or up to 108 dB using the foam eartips don't significantly affect the overall noise dose.

Etymotic Research HD•3 Includes:

• HD•3 Safety Earplugs + Headset + Earphones with foam eartips
• Assortment of foam and flanged eartips
• Shirt clip
• Storage pouch

Etymotic Research HD•3 Features/Benefits:

• Engineered for safe sound output and superior music reproduction
• Neodymium moving-coil driver with ACCU•Chamber Technology
• Kevlar®-reinforced cable for durability
• High-gloss finish reduces the need to play music at loud levels
• Designed for use in high-noise environments
• Protects hearing from unsafe sound levels, even at max volume on portable players
• Promotes safe listening by reducing the risk of overexposure to high sound levels
• Operates with most portable devices
• Eartips seal in even the smallest ears
• Blocks outside sound; no need to turn up the volume to overcome background noise
• Patented technology for smooth, accurate reproduction of sound
• Custom•Fit option -- improved comfort for extended wear
• NRR (Noise Reduction Rating):
  • Foam eartips = 27 dB
  • 3-flange eartips = 22 dB
• ACCU•Technology®; 3-Band equalized audio performance

Etymotic Research HD•3 Specifications:

• Compatibility:
  • Made for Devices with a standard 3.5 mm jack, including:
    • iPhone®
    • iPod® and MP3 players
    • iPad® and tablets
    • DVD players
    • Gaming devices
  • Frequency Response: 20 Hz - 15 kHz
  • Accuracy Score: 5+%
  • Transducers: -mm neodymium moving coil drivers
  • Noise Isolation: 35-42 dB
  • Impedance (@ 1 kHz): 300 Ohms
  • Sensitivity (@ 1 kHz) SPL at 0.1v: 76 dB
  • Cable: 4ft with 3.5 mm plug
  • User Replaceable ACCU-Filters: No
  • Warranty 1 Year
  • CUSTOM•FIT Option: Available (see note below)

Note:

Due to the personal nature of its usage, this product is non-returnable. Please contact your Sales Pro if you need assistance when choosing.

Etymotic offers a cost-effective CUSTOM•FIT solution to make your favorite earphones the best they can be with superb comfort, secure fit, and consistent noise isolation. It requires a brief registration process and a visit with an authorized audiologist to have ear impressions made. Please contact your Sales Pro for more information on this option.