Plantronics .Audio 648 alternatives, similar headphones

JPL Telecom JPL-611-PB
Specifications

JPL Telecom JPL-611-PM
Specifications

JPL Telecom X400-DESK
Specifications

JPL Telecom X400-DESK+USB
Specifications

Bose QuietControl 30
Specifications

Phonak Roger
Specifications

RIG 800HS
Specifications

RIG 800HX
Specifications

RIG 600
Specifications

RIG 400HX
Specifications

RIG 400HS
Specifications

Altec Lansing AHS 202
Specifications

Poly - Plantronics M 3000
Specifications

Poly - Plantronics GameCom P80
Specifications

Poly - Plantronics Backbeat PRO+
Specifications

Poly Voyager 5200
Specifications

Poly - Plantronics Backbeat Go 3
Specifications

Poly - Plantronics .Audio 45
Specifications

Plantronics CS540
Specifications

Plantronics .Audio 400DSP
Specifications

Plantronics SupraPlus HW251N
Specifications

Hypertec SupraPlus HW261N
Specifications

Poly - Plantronics M 130i
Specifications

Poly - Plantronics DuoPro Polaris P181N-U10P
Specifications