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Westone Adventure Series Beta High Performance Earphones w/ Inline Mic & Volume Controls [buydig.com]
Specifications:
Sensitivity: 97 db @ 1mW
Freq response: 20 Hz – 18 kHz
Impedance: 21 Ohms
Driver: 6.5mm Dynamic Driver
Cable: AWACS Reflective
In the box:
Adventure Series Beta High Performance Earphones (78401)