SENA RELEASES FIRMWARE UPDATES FOR THE SF1 & SF2 v3.3.4

4 November 2025

SF1 v3.3.4 (P/N : SF1-01, SF1-01D | Model : SP135-A)

• Adjusted VOX sensitivity

• Minor bug fix with volume sync issues on iPhone 

SF2 v3.3.4 (P/N : SF2-03, SF2-03D | Model : SP135-C)

• Adjusted VOX sensitivity

• Minor bug fix with volume sync issues on iPhone 

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