RJ9 To USB Audio Headphone Conversion Line Computer Headphones Line With Control Box

Highlights

• Microphone close button: You can turn off the microphone by simply pressing it.
• Volume up or down buttons: You can adjust the sound you want.
• Speaker close button: The speaker can be turned off to avoid unnecessary information transfer.
• Working status indicator light: the standby green light is always on, the call green light is flashing, and the closed sound is flashing red light.
• The RJ9 jack connects to the earphone, and the USB plug connects to the computer.