Tekkeon ezTalker Digital ET3000 alternatives, similar headphones

Poly - Plantronics .Audio 340
Specifications

Poly - Plantronics .Audio 350
Specifications

Poly SupraPlus H251/A Voice Tube
Specifications

Poly SupraPlus H251N/A
Specifications

Behringer HPS3000
Specifications

Behringer HPM1000
Specifications

Califone Listening First Stereo Headphone 2800-RD
Specifications

LevelOne BLH-1200
Specifications

Pama Diamante
Specifications

Ultron Rumble Sound
Specifications

Cyber Acoustics HE-200rb
Specifications

Cyber Acoustics ACM 1001
Specifications