Notch Hook Ups

Stay connected and protected with the Helmet Mount Earmuffs featuring integrated speakers that seamlessly hook up to SENA 33i /W4 Comms Systems.

Notch Hookups are fully certified earmuffs with integrated speakers that connect to SENA 33i or W4 Comms systems. They are comfortable for all-day wear and fit popular arborist helmets, including KASK, Petzl, Studson, SOVOS, and Milwaukee.

With an NRR of 25, Hookups help protect your hearing on the jobsite. They maintain their NRR certification while connected to the SENA comms unit, so you do not have to sacrifice your dB rating by drilling holes.

30K vs. 10S: Which model is right for you?

• Notch Hookups with SENA 10S: Best for crews under 4 who need straightforward communication. The 10S offers core features like intercom connectivity and noise cancellation for clear, reliable team communication at a lower cost.
• Notch Hookups with SENA 30Ki: Best for larger crews or anyone who needs stronger connectivity and better audio performance. The 30K offers extended intercom range, advanced noise control, and improved audio quality. It also includes MESH compatibility, making it easier to link more than 4 units.

Certifications

• CE certified to EN 352-3:2020
• CE certified to EN 352-6:2020
• ANSI S3.19-1974

Packed dimensions (pair)

• Length: 20 cm (7.9 in)
• Width: 14.5 cm (5.7 in)
• Height: 15.5 cm (6.1 in)
• Weight: 0.68 kg (1.5 lb)

Additional details

• NRR 25
• Hygiene kit available
• 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