Notch Hook Ups + SENA 33i
NEW_I
Item # 99292 33i

Notch Hook Ups + SENA 33i

$349.99
Notch Hookups Earmuffs are fully certified hearing protection earmuffs with integrated speakers designed to seamlessly connect to SENA communication systems. Built for professional arborists and worksite crews, they provide reliable communication while maintaining certified hearing protection.

  • Integrated speakers compatible with SENA 33i and Work 4 communication systems
  • NRR 25 hearing protection rating
  • Maintains NRR certification while connected to SENA communication units
  • No drilling or modifications required
  • Designed for all-day comfort
  • Compatible with popular arborist helmets including:
    • KASK
    • Petzl
    • Studson
    • SOVOS
    • Milwaukee
  • Available as a complete communication kit or earmuff-only option
SENA Model Comparison:

  • Notch Hookups with SENA 10S (Work 4 Model)
    • Ideal for crews of fewer than 4 users
    • Provides straightforward communication functionality
    • Features intercom connectivity and noise cancellation
    • Budget-friendly option with reliable audio clarity
  • Notch Hookups with SENA 30K / 33i Model
    • Designed for larger crews and advanced communication needs
    • Extended intercom range
    • Advanced noise control and enhanced audio quality
    • MESH compatibility simplifies linking multiple units
    • Ideal for crews larger than 4 users
    • Premium communication solution for professional arborists

  • Color
    Black
  • Pack Quantity
    Each
    • CE certified to:
      • EN 352-3:2020
      • EN 352-6:2020
      • ANSI S3.19-1974
    • Packed dimensions (pair):
      • Length: 7.9” (20 cm)
      • Width: 5.7” (14.5 cm)
      • Height: 6.1” (15.5 cm)
    • Weight: 1.5 lb (0.68 kg)
    • NRR rating: 25 for hearing protection on the jobsite
    • Hygiene kit available separately
    • Designed for use with standard helmet slot systems
    • Compatible with most safety helmets with standard earmuff inserts including KASK, Petzl, Studson, Milwaukee, Land, and others
    • Helmet not included


  • Color
    Black
  • Pack Quantity
    Each
    • CE certified to:
      • EN 352-3:2020
      • EN 352-6:2020
      • ANSI S3.19-1974
    • Packed dimensions (pair):
      • Length: 7.9” (20 cm)
      • Width: 5.7” (14.5 cm)
      • Height: 6.1” (15.5 cm)
    • Weight: 1.5 lb (0.68 kg)
    • NRR rating: 25 for hearing protection on the jobsite
    • Hygiene kit available separately
    • Designed for use with standard helmet slot systems
    • Compatible with most safety helmets with standard earmuff inserts including KASK, Petzl, Studson, Milwaukee, Land, and others
    • Helmet not included


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