Shop All

Log in to your account

Sign up for an account

When you become a partner with Petra, you get more than access to great products to resale... You will receive the following benefits!

  • Same Day Shipping
  • Lowest Price Guaranteed
  • No Minimum Order
  • Free Freight on Qualifed Orders


First Responders take 5% off when you pick up your purchase in uniform
1 - 6 of 6
  • 1
  • Etymotic Research® ER125-MP9-15BN

    Music•PRO® Electronic Earplugs

    • Designed for music educators & directors, performers, front-of-house crews, security personnel & more
    •  Provides either 9dB or 15dB protection at the flip of a switch while allowing clear communication
    • Engineered to provide full fidelity for inputs up to 120dB
    •  Enhances soft sounds if desired
    • Instantaneously protects from loud, percussive sounds
    •  Custom molds not required
    • Includes assorted eartips, filter removal tool & replacement filters, protective case, neck cord & #10 zinc air batteries
    • Part No. 325356
    • SKU ETYER125MP915
    • Vendor SKU ER125-MP9-15BN
    • Retail Price$299.00
  • Etymotic Research®

    ER4XR Extended-Response Precision-Matched In-Ear Earphones

    • High-performance balanced armature drivers are precision matched to within 1dB
    •  Specially designed for uncompromising accuracy in the mid to high frequencies with a bit of extra presence in the lower end
    •  Sleek, anodized, laser etched aluminum body & braided, reinforced detachable 5ft cables with custom MMCX connectors
    •  35dB–42dB of noise isolation with a max output of 122dB
    •  2-year manufacturer’s warranty provided for products purchased from authorized resellers
    • Part No. 325343
    • Vendor SKU ER4XR
    • Retail Price$349.00
  • Related Products Electronics | Gun
    Etymotic Research® ER125-GSP15BN

    GunSport•PRO® Electronic Earplugs

    • Blast protection for gun sport enthusiasts, professional shooters, guides, instructors & hunters
    • Allows natural hearing when no background noise is present & gradually protects from loud continuous noise from vehicles or machinery
    • At the flip of a switch sound is amplified, improving distance detection up to 5 times for enhanced awareness while at the same time protecting from blasts
    •  Includes assorted eartips, filter removal tool & replacement filters, protective case, neck cord & #10 zinc air batteries
    • 1-year manufacturer's warranty
    • Part No. 325354
    • SKU ETYER125GSP15
    • Vendor SKU ER125-GSP15BN
    • Retail Price$299.00
  • Etymotic Research® ER135-QSA-BG

    BEAN® Quiet Sound Amplifier® (Brushed Gold; Single)

    • Smooth, near-undetectable operation
    • Boosts soft high-pitched sounds heard in speech, providing clarity for conversations—particularly in less-than-ideal listening environments 
    • 2-position switch offers 2 levels of enhancement
    • Includes eartips, #10 zinc air batteries, replacement filters, filter tool & leather case
    • Brushed Gold
    • Single
    • Part No. 325358
    • Vendor SKU ER135-QSA-BG
    • Retail Price$214.00
  • Etymotic Research®

    ER3XR Noise-Isolating Earphones

    • Metal bodies with anodized finish
    • Detachable 4ft cables
    • Etymotic Research® signature sound with low-end enhancement
    •  Includes cable, assorted ear tips, filters, filter changing tool & compact pouch
    • Part No. 327360
    • Vendor SKU ER3XR
    • Retail Price$179.00
  • Etymotic Research® ER20-SMB-C

    ETY•Plugs® High-Fidelity Earplugs (Standard; Blue)

    • Replicates the natural response of the ear, so sound quality is the same as the original, only quieter
    • Music & speech are clear, not muffled
    • Reduces risk of hearing damage from loud noise such as concerts, theatres, airshows, parades, athletic & motorsports events
    • Enhances the music experience for audiences
    • Allows musicians to hear their own instrument & blend with others
    • Not recommended for use with impulse noise or for sleeping
    • Includes neck cord & storage case
    • Clamshell packaging
    • Standard fit with blue tips
    • Part No. 325347
    • Vendor SKU ER20-SMB-C
    • Retail Price$13.95
1 - 6 of 6
  • 1