Poly - Plantronics .Audio 500 USB alternatives, similar headphones

Cyber Acoustics ACM 2900
Specifications

Cyber Acoustics ACM 6800
Specifications

Cyber Acoustics ACM 8440
Specifications

Cyber Acoustics AC 100b
Specifications

Nokia BH-800
Specifications

Nokia HS 56W
Specifications

Poly CS 70 with HL10 handset lifter
Specifications

Qtek
Specifications

Sony MDR 110LP
Specifications

Siemens Headset Bluetooth Stereo HHB-750
Specifications

BenQ HHS-120 Purestyle
Specifications

Zebra CFLN 1425
Specifications

Poly - Plantronics .Audio 330
Specifications

Poly - Plantronics .Audio 340
Specifications

Poly - Plantronics .Audio 350
Specifications

Poly - Plantronics .Audio 360
Specifications

Poly - Plantronics .Audio 450
Specifications

Poly - Plantronics .Audio 370
Specifications

Poly - Plantronics .Audio 510 USB
Specifications

Poly - Plantronics SupraPlus SL Polaris P361N with Noise-Canceling
Specifications

Poly - Plantronics SupraPlus Wireless CS361N with Noise-Canceling + HL10 handset lifter
Specifications

Poly - Plantronics .Audio 330 Skype Bundle
Specifications

Poly - Plantronics SupraPlus Wireless CS351 with Voice Tube + HL10 handset lifter
Specifications

Poly - Plantronics Discovery 645
Specifications