Defender FreeMotion B645
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Good autonomy.
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.
What characteristics should good headphones have?Guide to key features of headphones
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Series Defender FreeMotion (wireless)Compare using chart →
overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.3, foldable, 20 – 20000 Hz, 32 Ohm, battery: 200 mAh, up to 14 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
built-in player, overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.3, 20 – 20000 Hz, 32 Ohm, battery: 360 mAh, up to 30 h
overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.4, foldable, 20 – 20000 Hz, 32 Ohm, battery: 300 mAh, up to 50 h
overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.4, active noise cancellation, foldable, 20 – 20000 Hz, 32 Ohm, battery: 300 mAh, up to 50 h
We recommendCompare using chart →
built-in player, overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v4.2, 20 – 20000 Hz, 32 Ohm, battery: 200 mAh, up to 4 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 v5.4, foldable, 20 – 20000 Hz, 32 Ohm, battery: 300 mAh, up to 50 h
overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.3, foldable, 20 – 20000 Hz, 32 Ohm, battery: 300 mAh, up to 8 h
overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.0, foldable, 20 – 20000 Hz, 32 Ohm, battery: 1000 mAh, up to 90 h
overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.3, foldable, 20 – 20000 Hz, 32 Ohm, battery: 200 mAh, up to 14 h
built-in player, overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.0, foldable, 20 – 20000 Hz, battery: 400 mAh, up to 9 h
built-in player, overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v4.2, 20 – 20000 Hz, battery: up to 8 h
overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.0, foldable, 20 – 20000 Hz, 32 Ohm, battery: 690 mAh, up to 50 h
overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.0, foldable, 20 – 20000 Hz, 32 Ohm, battery: 200 mAh, up to 20 h
for kids, overhead, closed, combined, detachable cable, 3.5 mm, 0.8 m, Bluetooth v5.0, foldable, 20 – 20000 Hz, 32 Ohm, battery: up to 24 h
for kids, overhead, closed, combined, detachable cable, 3.5 mm, Bluetooth v5.0, foldable, 20 – 20000 Hz, 32 Ohm, battery: up to 30 h