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

Feature‎:‎

• Wirelessly transmit phone call from Bluetooth mobile phone to the car FM stereo system
• Switch to hands‎-free mode automatically from music playing status when receiving calls
• It has Built‎-in Microphone
• Dual USB outpus 5V/3.4A totally‎,‎ charges iPod‎,‎ iPhone‎,‎ iPad and other devices
• Support USb Disk/Micro SD Card
• Strong and elegant deign with LED frequency display

Specifation‎:‎

• Model‎:‎ BT20
• Bluetooth Version‎:‎ AC4601 V2.1
• Bluetooth Protocol‎:‎ AVRCP‎,‎ HFP‎,‎ A2DP
• Freqency Stability‎:‎ ±10ppml
• Product Input‎:‎ 12‎-24V
• Music Format‎:‎ mp3‎,‎ wma
• Micro SD Card ‎(‎Max Capacity‎)‎‎:‎ 32GB
• Product Total Output‎:‎ 5V/3.4A
• Loop Mode‎:‎ Normal‎,‎ Single Cycle‎,‎ Repeat All‎,‎ Random
• EQ‎:‎ Classical‎,‎ JAZZ‎,‎ POP‎,‎ ROCK‎,‎ Vocal etc‎.‎
• Product Dimension‎:‎ ‎(‎L x W x H‎)‎ 4 x 3.5 x 8.5 cm
• Product Weight‎:‎ 0.034 kg
• Package Dimension‎:‎ ‎(‎L x W x H‎)‎ 7 x 4.5 x 15 cm
• Package Weight‎:‎ 0.060 kg

Product include‎:‎

• 1 x Dual USB Bluetooth Handsfree Car Kit With FM Transmitter And MP3 Player ‎- Black
• 1 x User Manual