Description:

4-in-1 3.1A Fast Dual USB Car Phone Charge, Voltage Meter Monitor USB Car Charger for Smartphone with Red LED Voltage Display.
Dual USB Ports: Each Port 2.4A Max for fast charging your iPad iPhone Samsung Galaxy MP3 Players, Digital Cameras, PDAs etc, and support read memory disk / U-disk.
LED Voltage Display: Red LED digital luminescence tubes; Monitor the voltage of the vehicle's car battery when not charging any devices, LEDs are bright enough to read the display.
Over Charge protection: USB car charger is auto power off when input/output is greater than safety current, protects against over-heat, over-current and over-charging.
Key Buttom: Just turn to the key to adjust Frequnency +/- , next/previous song, pause,reject, call a phone. Long press to switch between bluetooth and USB.

Specification:

Size: 103x33mm
Color: Black
Material: Metal
Input: DC 12-24V
Output 1: 5V/2.4A - Output 2: 5V/2.4A

Package Includes:

1 Piece Dual USB Car Charger
1 Piece User Manual