Defender FreeMotion B570
 | Outdated Product Design: overhead, closed; full size Over-Ear; Connection type: combined; mini-Jack (3.5 mm); Bluetooth version: Bluetooth v4.0; Cable supply: single-sided; Range (m): 10; Detachable cable; Impedance (Ohm): 32; Frequency range (Hz): 20 – 20000; Sensitivity (dB): 115; Speaker size (mm): 40 |
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Defender FreeMotion B570
Type:full size (over-ear)
Connection:3.5 mm, Bluetooth v4.0
Frequencies:20 – 20000 Hz
Sensitivity:115 dB
Battery:up to 10 h
All specifications
Specifications FreeMotion B570
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E-Catalog UK editor, Headphones
Olexandr Cherkashchenko, 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 →
gaming, built-in player, overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.3, foldable, 20 – 20000 Hz, 32 Ohm, battery: 800 mAh, up to 32 h, with case + 70 hours without backlight
built-in player, overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.3, foldable, 20 – 20000 Hz, 32 Ohm, battery: 400 mAh, up to 50 h
built-in player, overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.0, foldable, 20 – 20000 Hz, battery: 200 mAh, up to 5 h
overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.3, 20 – 20000 Hz, 32 Ohm, battery: 360 mAh, up to 14 h
Good noise isolation. Good sound. After 2 weeks, the plastic cracked beyond repair. They weren’t dropped or subjected to heavy loads. use Defender FreeMotion B570 week i recommend it don't buy |
Good, comfortable headphones. In addition to listening to music via Bluetooth, they can be used as a player or a headset for phone calls. I wear them over a hood, but they’re also quite comfortable directly on my head. I wore them in winter-to-March rain, and they still work. However, I don’t recommend turning them on while wearing them—the sound is extremely high-pitched and loud, which isn’t the best thing you can do for your ears. Convenience, aesthetics, functionality. Very loud sound when switched on. use Defender FreeMotion B570 few months |
I bought it solely for use as an FM receiver. Reception is decent around the city, and the sound is fairly clean but flat—the bass and treble are nothing to write home about. affordable the headband broke after a month of use, without any strain—it simply snapped, that's all.  Aleksey: use Defender FreeMotion B570 less than month |
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