Features: Made of ABS high quality material, it is lightweight, safe and reliable to use. It is suitable for automobiles, big trucks, boats, motorcycles, electric boxes, etc. It is for 90 percent of all mobile phones on the market. This is QC3.0+PD for smart fast car charger; Type: Dual usb charger with voltmeter & thermometer . Suitable for mobile phones, tablets, GPS and other USB devices. Specifications: Material:ABS Length: Approx.6.8cm/2.67inch Diameter:Approx.3.7cm/1.45inch Light Color:Blue/Red Type: Dual usb charger with voltmeter & thermometer Operating Voltage: 12-24V USB Output: QC3.0 Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x USB Charger