Functions 4 USB 1.1 hubs (one in, three out)(Type A:without USB hubs,Type B:Versionl 1.1,Type C:Version 2.1) 10-Digital arithmetic Memory Calculation: M+M-MRC. Mousepad Blue moodlight

Battery Installation Open the battery cover,insert one AGl3 button cell battery according to the polarity sign Set the ON/OFF switch to "ON" position, the unit will display as normal. Otherwise, please install the battery again. Adapter usage Insert an adapter into the socket for power, then the blue moodlight of this unit will be ON (Notice: the output of adapter is stable direct current 5V)

USB usage Connect PC with "USB IN" jack of this unit by USB cable (provided), the blue moodlight is ON The other three USB hubs can be connected with other computer accessories to operate the hardware or data transmission Such as keyboard,a mouse,USB flash, MP3, MP4 etc.

Calculation Set the ON/OFF switch to "ON" position. Press `AC` to start the calculation,pressing the function key to fulfill the 10-digital arithmetic. Press `M+`, `M-` & `MRC`to carry out memory calculation. Press `AC` to end the operation,resetting to the `0` on the display.

Mousepad usage Set the ON/OFF switch to "OFF" position to turn off the calculator The unit is used as a mousepad.

Battery replacement When the display is blurry,it means that the unit lacks of power, please replace the AGl3 button cell battery with the same specifications.