Defender FreeMotion B640 (63641)
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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.
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
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 v5.0, foldable, 20 – 20000 Hz, battery: 200 mAh, up to 5 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
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 v5.3, 20 – 20000 Hz, 32 Ohm, battery: 360 mAh, up to 14 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
We recommendCompare using chart →
in-ear, wireless, Bluetooth v4.2, 20 – 20000 Hz, battery: up to 8.5 h, with case + charging time — 2 hours
for active sports, in-ear, wireless, Bluetooth v5.0, waterproof, 20 – 20000 Hz, 16 Ohm, battery: up to 8 h
in-ear, wireless, true wireless, Bluetooth v5.0, active noise cancellation, voice assistant, waterproof, 20 – 20000 Hz, 16 Ohm, battery: 35 mAh, up to 4 h, with case + 12 h
in-ear, wireless, true wireless, Bluetooth v5.3, AAC, 20 – 20000 Hz, 16 Ohm, battery: 40 mAh, up to 5 h, with case + 25 h
in-ear, wireless, true wireless, Bluetooth v5.0, active noise cancellation, voice assistant, waterproof, 20 – 20000 Hz, 16 Ohm, battery: 40 mAh, up to 4 h, with case + 16 h
in-ear, wireless, true wireless, Bluetooth v4.2, AAC, 20 – 10000 Hz, 16 Ohm, battery: 55 mAh, up to 12 h
in-ear, wireless, true wireless, Bluetooth v5.3, AAC, 20 – 20000 Hz, 16 Ohm, battery: 35 mAh, up to 4 h, with case + 20 h