BOOMBOOST 4 In 1 Dual USB Car Charger DC 5V 3.1A Dual Port Car Cigarette Charger with LED Voltage Meter, 12V 24V Fast Charging, Compatible with IOS/Android/all smartphone, iPad, Tablets

• Top Quality Car USB Charger: Input Voltage: DC 12-24V, Output Voltage: DC 5V. The Car Phone Charger charges quickly and the dual USB sockets can easily meet your needs. Fast charging IOS/ Android/ all smartphone system and USB Power devices.
• Multiple Protection: Double 3.1A USB output, PTTC over-current protection, display the voltage, temperature and current alternately by each 10 seconds. Auto power off while the input current or output current is greater than the safety current, please plug out will working again.
• LED Display: It’s an easy and effective car voltage meter to know the health of your car battery in real time. BLUE LED screen displays from charging current of the device to the voltage of the car battery. The LED makes it obvious to read the screen without distracting you while driving.
• Compact Design: This mini USB car charger is one of the industry's smallest car USB adapter with voltage meter display, featuring two USB ports. It’s pocket sized and is portable for your own or rental car.
• Package Includes: 1 x 4 In 1 Dual USB Car Charger Adapter with LED Display. If you have any questions, please feel free to contact us.

Specifications: New design with double 3.1A USB output, PTTC over-current protection, display the voltage, temperature and current alternately by each 10 seconds. Auto power off while the input current or output current is greater than the safety current, please plug out will working again. Features: 1. Type: 4 in 1 Car Charger 2. LCD Digital Color: Blue 3. Output Interface: USB 4. Apply to all USB charging mobile phones or other electronic products. 5. Optimized for iPad, iPhone and iPod-fast loading at full speed.(2.1 amps for iPad, 1 amp for iPhone / iPod.) 6. Input Voltage: DC 12-24V (Error of plus or minus 0.2V) 7. Output Voltage: DC 5V (Error of plus or minus 0.1A) 8. Output Current: 3.1A 9. Voltage Measuring Range: 5-25V 10. Current Measuring Range: 0.1A-3.1A 11. Conversion Efficiency: 95% 12. Temperature Measurement Range: -20 degrees to +80 degrees (Error of plus or minus 1 degree) 13. Size: 42mm * 78mm * 20mm/1.65" * 3.07" * 0.79" (Approx.) Package Includes: 1 * 4 In 1 Dual USB Car Charger Adapter Packaging Details Package Weight: 0.053kg (0.12lb.) Package Size: 20cm * 15cm * 10cm (7.87in * 5.91in * 3.94in)