Features The shell is made of high quality ABS material, high strength, good transparency. Real-time detection of voltage, current, power and other data will be clear at a glance. Suitable for most applications, such as phones, power banks, pads and other electronic products. Small size, portable to carry, no extra power required. It adopts the exquisite SMAT technology, can measure USB-powered devices, and supports QC2.0/QC3.0 fast charging test. Features: Suitable for most applications, such as phones, power banks, pads and other electronic products. The shell is made of high quality ABS material, high strength, good transparency. Small size, portable to carry, no extra power required. Real-time detection of voltage, current, power and other data will be clear at a glance. It adopts the exquisite SMAT technology, can measure USB-powered devices, and supports QC2.0/QC3.0 fast charging test. Specification: Housing material: ABS USB: USB 2.0 Voltage measurement range: 3.2-10V Current measurement range: 0-3A Accuracy: 0.01 Capacity accumulation range: 0-9999mAh Power measurement range: 0-90W Power supply range: 0- 999.9wh Optional color: black, blue Size: approx. 70*25*10mm/2.8*1*0.4inch Weight: approx. 16 g / 0.6 oz. Package List: 1 x USB Tester Note: 1. Please allow a small error due to manual measurement. Thank you for your understanding. 2. Just a USB tester, other things are not included. Package List