eatures: 1. The Multifunctional Bluetooth Car Kit integrates FM Transmitter, MP3 Player and Car Charger. 2. Frequency range:87.5-108 Mhz. 3. Short press the Frequency Selection Button of the device to switch to the next frequency point, 4. Compatible with almost all Bluetooth-enabled audio devices such as, for iPhone 6 6S Plus 5S, for Samsung Galaxy S6 5 S4 S3 / Note5 4 3 2, for HTC One, Tablet PC, Laptop, etc. 5. Supports Bluetooth hands-free calls (via built-in microphone).   --Supports MP3 Player function, and supports playing music files of TF / Micro SD Card, (music formats can be MP3, WMA, etc). 6. Uses CVC noise suppressed and echo cancellation technology to create the full duplex sound quality, offering Perfect Sound Quality and clear communication effect. 7. The flexible arm can be rotated (180 degrees). 8. Supports HFP / HSP, A2DP / AVRCP Bluetooth protocol. 9. The included USB port can supply power to your portable devices such as, mobile phones, MP3, MP4, etc. Specification: Bluetooth Version V 3.0+EDR; Class 2 Frequency 2.402-2.480GHZ Sensitivity -42dB 3dB (360 Round) Output Voltage 5V 02.5 Working Voltage 5V 0.5 Output Current 1000mA(MAX) Short Circuit protection Current 2.4 ~ 3.0A Working Current 45mA (MAX) Standby current 25mA (MAX) Effecting distance 5M Sensitivity -92dB RF Output 4dBm Pairing: 1. The pairing function will be activated automatically when the device is power on. White the LED indicator's 1 time/second blinking, search this device with the nam