Features:

Thanks for choosing our Pretty Handy Bluetooth FM Transmitter. This device releases stream music and calls directly from your Bluetooth device to your car FM stereo system. The built-in microphone provides you with an amazing hands free function, it is also with a Micro SD card/USB Disk slot that lets you enjoy favorite MP3 and WMA tunes by your car's stereo system, And Most of functions achieved by the Rotation.

Specifications:

Bluetooth version: AC4601 V2.1
Bluetooth Protocol: AVRCP, HFP, A2DP
Frequency range: 87.5-108.0MHZ
Frequency stability: ±10ppml
Product Input: 12-24V
Music Format: mp3, WMA
Micro SD Card( Supported Max capacity): 32GB
U disk(maximum): 32GB
Output current: 5V/3.4A
Cycle mode: Normal, Repeat, Random
EQ sound: Classical, jazz, pop, rock, vocal, etc.

• 3 in 1 Bluetooth FM Transmitter: Bluetooth Handsfree Car Kit + FM Transmitter + 3.4A Car Charger
• Easily paired your phone with the Bluetooth FM Transmitter and its hands-free system can set free your hands during answer the calls and let you safely drive
• 2 USB port: 1 of the USB port support playing MP3 file from the USB flash drive; support TF card music playing
• Compatible with all smartphones with Bluetooth function
• With built-in microphone; support TF / Micro SD Card; support A2DP, support MP3/WMA format songs

3 in 1 Bluetooth FM Transmitter: Bluetooth Handsfree Car Kit + FM Transmitter + 3.4A Car ChargerPretty Handy