How much does this cost to the nearest dollar?

Mini USB Voltage Current Monitor Tester Capacity Detector LCD Display 4V-30V 0-3A
Description This USB Multi-meter plugs directly into any USB socket or Micro-USB charger or cable. It displays on the screen the voltage, current and capacity. This universal usb gadget is suitable for most of the mobile phones, mobile power, tablet PCs and other USB devices including iPhone and Samsung Galaxy. It has precise current calibration function, so the current accuracy is higher.Specification Input / Output voltage Resolution / Output Current 0A - Resolution Capacity Range mAAccuracy Plus or minus 1%Line Loss 0.1 oh or soTest Content Battery voltage, Current, Discharge capacity (a total of 10 sets of data)Communication Function YesData Calibration Function YesPackage Weight included

Price is $9.00

Price: $9.03