Description: Wide scope of application: the product supports 5V/3.4A charging, and can supply power for mobile phones, tablet, navigation, GPS, etc Purpose: The product is equipped with a color screen voltmeter, which can detect the use of the car battery at any time to prevent hidden dangers caused by defective batteries Multiple protection functions: input overvoltage and undervoltage protection; Output over-current, over-voltage, undervoltage and short circuit protection; Reverse connection protection; High temperature protection inside the chip High quality: silicone material, waterproof and dust-proof, prevent rain and dust, effectively extend the service life of the product Temperature display: real time display of outdoor temperature, intimate temperature design, more secure travel Specification: Product name: motorcycle dual usb mobile phone charger Input voltage: DC12V-24V Product interface: dual USB port Output voltage: usb: 5V-3.4A 9v-2A 12v-1.5A, type-c: 5V-3A 9v-2.22A 12v-1.67A minitor range of voltmeter: 6-30V Color screen voltage range: 10V-12.7V appears red, 12.8V-14.5V appears green, 14.6V-16V appears blue Installation methods: faucet handle installation and rearview mirror installation, two fixing methods Material: ABS Support multiple charging protocols: support Type-C PD port output, support BC1.2, QC2.0, QC3.0 and other fast charging protocols Size Chart: Thread length: 70cm/27.56inch Package Includes: 1 piece Faucet bracket 1 piece Rearview mirror fixing bracket 1 piece Anti-slip gasket 1 piece Long screw  2 pieces Small screw 1 piece Fixed nut 1 piece Fixed gasket Note: Please allow slightly errors due to manual measurement and different monitors.