Main Features:
Original Xiaomi ROIDMI 5V / 3.1A car charger adapter
3.1A total large output current for fast charging
FM transmitter and car charger
Short-circuit protection
Input: 12 - 24V, 0 - 2.4A
Output: 5V 2.1A, 5V 1A
Output power: 15.5W
FM: 87.5 - 108MHz
Bluetooth: V4.0 or above
Compatibility: Bluetooth 4.0 smartphone with Android 4.0 or above system
Connect with your smartphone via Xiaomi Smart Home APP
APP for Android system only
iOS users can connect via Bluetooth to play music (default frequency 96.4MHz)
not support Straight-through type cigarette lighter

Note:
USB cable showed in the picture is not included in the package.

Specifications:
Model : Xiaomi ROIDMI
Color : White
Features: Music playing / FM / Bluetooth
Apply to : Digital Cameras, Mp3, for iPhone 4/4s/iPod/iPad 2/The Nwe iPad, Mp4, iPad Mini, Laptop Computers,for iPhone 5/5s, Phones, for Samsung Phones, Other AC and USB Appliances
Input : 12-24 V
Output : 5V/2.1A, 5V/1.0A

Dimension and Weight:
Product weight : 0.037 kg
Package weight : 0.15 kg
Product size (L x W x H) : 6 x 2.1 x 2.2 cm / 2.36 x 0.83 x 0.86 inches
Package size (L x W x H) : 11 x 6 x 4 cm / 4.32 x 2.36 x 1.57 inches

Package contents:
1 x Original Xiaomi ROIDMI Car Bluetooth Charger Adapter