Features The shell is made of high quality ABS material, high strength and good transparency. Real-time detection of voltage, current, power and other data is clear at a glance. Suitable for most applications, such as phone, power bank, pad, other electronic products. Small, portable, no additional power supply required. Adopt exquisite SMAT technology, you can measure USB powered devices and is compatible with QC2.0/QC3.0 fast charging test. Features: Suitable for most applications, such as phone, power bank, pad, other electronic products. The shell is made of high quality ABS material, high strength and good transparency. Small, portable, no additional power supply required. Real-time detection of voltage, current, power and other data is clear at a glance. Adopt exquisite SMAT technology, you can measure USB powered devices and is compatible with QC2.0/QC3.0 fast charging test. Specification: Shell material: ABS USB: USB 2.0. Voltage measurement range: 3.2-10V Current measuring 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 x 25 x 10 mm / 2.8 x 1 x 0.4 inches. Approximate weight 16 g / 0.6 ounces. Package list: 1 x USB tester. Note: 1. Please allow small size errors due to manual measurement. Thank you for your understanding. 2. Only a USB tester, no other things included. Package List