EASY TO USE: Headphone adapter cable from both USB ports to RJ9 jacks. The RJ9 jack is connected to the earbud and the USB jack is connected to the computer. Comes with a Mic Control Box: LCD digital cycle timer timer switch to turn off the mic, adjust the volume, and turn off the speaker with the touch of a button. Working Status Indicator: The green sleep indicator of the LCD digital cycle timer timer timer switch is always on, the green call indicator is flashing, and the sound is off and flashing red. Unique Design: LCD Digital Cycle Timer Timer Switch. Lightweight, sleek, and compact design that maximizes convenience and ease of use. Flexible and practical: short 158 cm cable, modular clock, LCD digital timer to easily move the adapter, while effectively protecting the interface ...