Real-time detection of voltage, current, power and other data will be clear at a glance. Small size, portable to carry, no extra power required. The shell is made of high-quality ABS material, high strength, good transparency. Suitable for most applications, such as phone, power bank, tablet, other electronic products. Uses exquisite SMAT technology, 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 measurement range: 0-3A Accuracy: 0.01 Capacity accumulation range: 0-9999mAh Power measurement range: 0-90W Energy measurement range: 0- 999.9wh Optional color: Black, Blue Size: Approx. 70*25*10mm/2.8*1*0.4inch Weight: Approx. 16g / 0.6oz Package list: 1 x USB Tester Note: 1. Please allow slight size error due to manual measurement. Thank you for your understanding. 2. Only one USB tester, no other items included. 1Real-time detection of voltage, current, power and other data will be clear at a glance 2Small size, portable to carry, no extra power required 3The shell is made of high-quality ABS material, high strength, good transparency 4Suitable for most applications, such as phone, power bank, tablet, other electronic products 5Uses exquisite SMAT technology, can measure USB powered devices and is compatible with QC2.0/QC3.0 fast charging test