Well DesignedReal-time detection of voltage, current, power and other data will be clear at a glance, small size, portable to carry, no additional power required. Excellent and DurableThe shell is made of high quality ABS material, it has good abrasion resistance and high temperature resistance, good transparency, ensuring maximum strength and durability, so it has a longer service life. Widely UsedSuitable for most applications, such as phone, power bank, keyboard and other electronic products. Voltage measuring range: 3.2-10V, Current measuring range: 0-3A. This dual USB meter is small in size and can automatically convert and display USB charging voltage and current Suitable for "most" mobile phones, power banks, tablets and other USB devices This USB watch is completely made with exquisite SMT technology, so the consistency is very good Color: Black Size: 6.7*2.4*1.5cm. Quantity delivered: 1 piece The dimensions of the products are all measured by hand, there are errors, and the actual product shall prevail. The color of the product is affected by the shooting light, and there is a slight color difference, which is subject to the actual product received.