1、Able to be adjusted at any angle, suitable for all types of vehicles. 2、Bluetooth answering, hanging up, rejecting, redialing and other calling functions. 3、Echo cancellation and noise control (CVC) technologies during calling. 4、Automatic power-off memory function, convenient in use. 5、Professional manufacturing, stable performance, good reliability and durability. This product is a Bluetooth hands-free car charger MP3 player, using high-performance professional-grade Bluetooth module, built-in MP3/WMA decoder chip, music files inside USB flash disk can be played, wirelessly transmitted to car audio. Your mobile phone call equipped with Bluetooth can automatically switch to the state of hands-free call, and automatically switch back to music playing state after the call ends. MP3 music in the phone can be wirelessly transmitted to the car stereo through Bluetooth connection, and also supports hands-free calling. No need to convert cars, enjoy music easily, and make a hands-free call while driving, safe and enjoyable. Features: Able to be adjusted at any angle, suitable for all types of vehicles. Bluetooth answering, hanging up, rejecting, redialing and other calling functions. Echo cancellation and noise control (CVC) technologies during calling. Automatic power-off memory function, convenient in use. Professional manufacturing, stable performance, good reliability and durability. Easy installation, perfectly match to your original car. Specification: Condition: 100% Brand New Material: PC+ABS Color: As picture shown Package Weight: approx.57g Rated working voltage: 12V~24V Ultimate working voltage: 9~26V USB output: 5V/2.1A Working temperature: 0~50 degrees Support playback format: MP3 Signal to noise ratio: >60dB Distortion: 60dB Bluetooth version: Version 2.1+EDR Bluetooth sound processing: A2DP (Advance Audio Distribution Profile) Bluetooth transmission distance: 10M Bluetooth microphone effective distance: 0.5~2M FM transmission frequency: 87.5~108Mhz Transmit FM mode: Stereo digital PLL lock frequency Supports: Support FM full frequency transmission function Support digital tube display Support LINE audio input Support Bluetooth separate power switch machine Support USB flash disk playback Support MP3, WMA format music Support Bluetooth stereo music playback Support dual USB output voltage, supply power to other devices, maximum output 5V/2.1A Schematic description: Volume addition / subtraction / up and down / CH + CH- Power Indicator LINE input hole Power switch Answer/re-telephone/play/pause Microphone hole Hanging phone / FM / volume mode switch Digital tube display window Cigarette butt 12V-24V Support USB flash disk playback / USB output 5V / 2 .1A (maximum) USB output 5V/2.1A (maximum) Product operation instructions: Bluetooth mode: Put the main unit on the cigarette butt base, turn the power switch to ON, and the product will automatically enter the power-on state after power supply. LED display frequency. When you use your mobile phone for the first time with Bluetooth hands-free connection, your mobile phone needs to be connected to the Bluetooth hands-free code. In the Bluetooth hands-free state, set the Bluetooth function in the phone to the enabled state, and search for the device of BC-06/Car kit, which is displayed on the phone. Select the device of BC-06/Car kit and pair it automatically. After pairing, Bluetooth will have a tone. Making a call: In the connected state, the phone number is directly dialed out by the mobile phone, and the voice is automatically sent from the car audio speaker. Answering the call: In the connected state, when a call is made, the button is directly connected to the call. After the call is connected, the button can be used to switch between the handset microphone and the machine microphone, and the button hangs up. Refusing to answer the call: When a call is made but you don't want to answer it, press the button to reject the call. Playing music stored on your phone: This product supports the A2DP function, which can play the music stored in the mobile phone and transmit it to the car audio through the Bluetooth hands-free FM to restore higher quality music effects. Short press the button for play/pause function, short button for next/previous song function. (Note: Some mobile phone versions do not support this function.) USB flash disk playback song mode: Insert the machine into the cigarette lighter of the car. After the player detects the song in the USB flash disk, it will play automatically. Press the key to enter the next and previous playback. Short press the key to