Headphones A4TECH HS-28 Frequency: 20 - 20 000Hz Microphone: Yes Connection: 3.5 mm Jack Clientw/ VAT
Headphones A4TECH HS-30 Frequency: 20 - 20 000Hz Microphone: Yes Connection: 3.5 mm Jack Clientw/ VAT
Headphones with microphone A4TECH HS-50 Frequency: 20 - 20 000Hz Microphone: Yes Connection: 3.5 mm Jack Clientw/ VAT
Headphones with microphone A4TECH HU-30 Frequency: 20 - 20 000Hz Microphone: Yes Connection: USB-A Clientw/ VAT