Hi, Dear little angel, welcome to Jacenvly, our products are cheap and good quality, price is fair, you can't miss it. If this product is not your style, please click on our store, we have many kinds of products, there will be you like and suits you. If you have any questions about your purchase, please send us the first message, we offer world class customer service to make your purchase without your worries. Have a nice day. US-B Power Meter 4-24V 5A LCD USB A&C Voltage Current Display USB Tester Multimeter Test Speed of Charger Cables Capacity of Power Bank, QC 2.0 3.0 Specification: Product Name: USB Power Meter Product color: White,Black Material: ABS Gross weight: 0.04lbs(16.2g) Product size: 6.5x2.60x1.30cm/2.56x1.02x0.51inch Package size: 14.5x9.5x2cm/5.71x3.74x0.79inch Features: Parameter --- Input voltage: 4-30V; Input current: 0-6.5A; Capacity measurement range: 0-999999mAh; Energy measurement range: 0-999999mWh; Load impedance measurement range: 0Ω-999.9Ω; Sensing temperature(Default temperature unit） 1.44” LCD Display --- The multimeter has a 1.44 inch LCD high-definition color LCD display, on which real-time display of the charging status of electrical appliances, voltage, current, capacity, energy, power, equivalent impedance, temperature and other indicators are clear at a glance. Fast Charging --- Support QC2.0, QC3.0, Android DCP, support A-CE 65w/120w NOTE: This fast charge protocol identification mode is for reference o-nly as the mobile phone update is faster and cannot be accurately identified,not support A-P-P-LE The meter is covered with protection film to the meter from scratching during shipping. Scratches on the protective film are normal, just tear it off. Please connect the USB meter correctly. From USB male port to USB female port, or from Type-C IN port to Type-C OUT port. Don’t connect from USB male port to Type-C OUT port. 3. This version doesn’t support blue~tooth connection. Package Include: 1x USB Power Meter US-B Power Meter 4-24V 5A LCD USB A&C Voltage Current Display USB Tester Multimeter Test Speed of Charger Cables Capacity of Power Bank, QC 2.0 3.0 Specification: Product Name: USB Power Meter Product color: White,Black Material: ABS Gross weight: 0.04lbs(16.2g)