This advanced LCD Digital Voltmeter Ammeter is an essential tool for anyone needing precise measurements of voltage and current. It features a dual USB charger that makes it incredibly versatile for charging mobile devices while monitoring their power usage. Dual USB Ports: Charge two devices simultaneously with the integrated USB ports, ideal for smartphones, tablets, and other USB-powered devices.<br><br>Accurate Measurements: Get real-time readings of both voltage and current, ensuring your devices charge safely and efficiently. Wide Application: Perfect for a variety of uses including DIY projects, mobile power testing, and electronic repairs. Easy to Read Display: The large LCD screen displays clear and concise information, allowing for easy monitoring. Enhance your device management and safety with this reliable and multifunctional voltmeter and ammeter. Color: White & Black Material: plastic<br><br>Package Contents: 2 * USB current and voltage meter testers<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.