Defender FreeMotion B645
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Defender FreeMotion B645
Type:full size (over-ear)
Connection:3.5 mm, Bluetooth v5.3
Frequencies:20 – 20000 Hz
Sensitivity:105 dB
Battery:360 mAh, up to 30 h
Good autonomy.
All specifications
Specifications FreeMotion B645
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E-Catalog UK editor, Headphones
Olexandr Cherkashche…, edited 08.04.2026
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Defender 2026 - new arrivals, bestsellers, and the most relevant models Defender.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Defender 2026 - new arrivals, bestsellers, and the most relevant models Defender.
Everything You Need to Know About Headphones: A Complete Technical GuideThe choice begins with understanding the design and features.
What characteristics should good headphones have?Guide to key features of headphones
Series Defender FreeMotion (wireless)Compare using chart →
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