Hook Ups

The Notch Hookups are fully-certified earmuffs with integrated speakers that seamlessly connect to the SENA 33i or W4 Comms systems. The earmuffs are comfortable for all-day wear and are compatible with popular arborist helmets like KASK, Petzl, Studson, SOVOS and Milwaukee. The NRR rating of 25 will protect your hearing on the jobsite, and the Hookups will maintain their NRR certification while connected to the SENA comms unit- no more sacrificing your dB rating by drilling holes. The Hookups are available as a kit for a full communication system solution or they are available on their own for professionals who already own a communication device but are looking to upgrade their earmuffs.

Hook Ups Instructions (PDF)

30k vs. 10S: Which Notch Hookups w/ SENA Model is Right for You?

* Notch Hookups w/ SENA 10s: Ideal for crews <4 who need straightforward communication. The 10s offers essential features like intercom connectivity and noise cancellation, making it perfect for basic communication needs. It's a budget-friendly option without sacrificing clarity and reliability.

* Notch Hookups w/ SENA 30ki: For big crews, or those who need enhanced connectivity and audio features, the 30k is the way to go. It offers extended intercom range, advanced noise control, and superior audio quality. The 30k also includes MESH compatibility making linking units or using more than 4 units much easier- making it the premium choice for professional arborists who demand the best.

Certified to CE 2777

• EN 352-3 2002
• EN 352-6 2020
• ANSI S3.19-1974
• UPC: 810122890805

Packed dimensions (pair):

• Length: 7.9” | 20cm
• Width: 5.7” | 14.5cm
• Height: 6.1” | 15.5cm
• Weight: 1.5 lb .68kg

• Hygiene kit also available
• NRR of 25 to protect your hearing on the jobsite
• Designed for use with standard helmet slot
• Compatible with most safety helmets with standard earmuff inserts (KASK, Petzl, Studson, Milwaukee, Land, and more)
• Helmet not included