Defender Twins 639 (63639)
 | Outdated Product Design: in-ear; Connection type: wireless; Bluetooth version: Bluetooth v5.0; Range (m): 10; Frequency range (Hz): 20 – 20000; Sensitivity (dB): 100; Speaker size (mm): 6; Operating time (music) (h): 4; Charging port: microUSB; |
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Defender Twins 639
Type:in-ear
Connection:Bluetooth v5.0
Frequencies:20 – 20000 Hz
Sensitivity:100 dB
Battery:up to 4 h
All specifications
Specifications Twins 639
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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.
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