EASY TO USE: Headset adapter cable from two USB ports to RJ9 jacks. The RJ9 jack is connected to the headset and the USB jack is connected to the computer. Comes with a mic control box: LCD digital cycle timer timer switch to mute the mic, adjust the volume and turn off the speaker with just one button. Working status indicator: The green standby indicator of the LCD digital cycle timer timer switch is always on, the green call indicator flashes, and the sound is off and flashes red. Unique design: LCD digital cycle timer timer switch. Lightweight, stylish and compact design maximizes convenience and ease of use. Flexible and practical: 158cm short cable, modular clock, LCD digital timer for easy adapter movement, while effectively protecting the computer's USB interface. LCD display - Weekly programmable electronic relay time - 16 ON and OFF modes (AC 220V). Advanced presets one week in advance. Digital electronic timer General purpose with daily and weekly programs. Repeat programs with 16 start/stop settings. Adjustment accuracy to minute. The LCD screen displays real-time hours/minutes and on/auto/off. DIN rail mounting without DIN rail. Dimensions: 86 x 36 x 65 mm. Contents: 1 timer, 1 English manual