Introduction‎:‎This product is blue‎-tooth car charger mp3 player for vehicle‎.‎ Adapting professional‎-grade high‎-performance bluetooth module‎,‎ built‎-in mp3 decoder chip make it capable of playing the music files in u disk‎,‎ firing into the car stereo via wireless‎.‎ Besides‎,‎ during the bluetooth connecting‎,‎ play the phone’s music and FM transmitter to Car Audio‎,‎ as the calls incoming automatically switches to the speaker state‎,‎ call end then automatically back the music player‎.‎ So you do not do any modifications‎,‎ easily enjoying the music and handsfree phone calls while you are driving‎.‎‎:‎Bluetooth hands ‎- free calling‎.‎Support charging the mobile phone‎.‎ Phone will never have no power in the car‎.‎Echo cancellation and noise suppression technology‎.‎ ‎(‎when car is with speeds of up to 100 yards‎,‎ there will have no echo by using the Bluetooth phone‎.‎‎)‎Stereo Bluetooth and FM transmitter technology‎.‎Support USB‎.‎Support MP3‎,‎ WMA format music‎.‎Automatic power‎-off memory function‎.‎Car cigarette lighter power supply directly‎.‎ Operation Introduction‎:‎1‎.‎ Play the Music‎:‎Insert the product into the car cigarette lighter socket‎,‎ then insert MP3 into the appropriate socket‎,‎ the player will enter to play state automatically after detecting the music files‎,‎ press Play / Pause to switch‎.‎Turn on the car stereo to FM radio mode‎,‎ then adjust the reception frequency of car audio and car radio transmission frequency to same‎,‎ car stereo will play the music machine‎.‎2‎.‎ Adjust the Transmission Frequency‎:‎Press the ‎"‎FM‎"‎ and keys to adjust the frequency of the FM transmitter between 87.5 ~ 89.5 ~ 90.5 ~ MHZ‎.‎ Long press and then quickly adjust‎.‎3‎.‎ Short press button or key‎,‎ you can play the previous song or next song‎,‎ long press the volume down and volume increases‎.‎4‎.‎ How to Use Bluetooth Handsfree Function‎:‎The first time you use the speakerphone need to code‎.‎ The method for code is‎:‎ open the phone‎'‎s Bluetooth function and search‎,‎ after the phone searches for Bluetooth phones successfully‎,‎ it will bundled machine‎,‎ then you need to enter the initial password 0000 bundled in the phone‎.‎ You can make and receive calls via speakerphone after the connection is completed‎.‎If the phone with the hands‎-free player already had code‎,‎ phone settings allow automatic connection of Bluetooth‎,‎ when power on the speakerphone will automatically connect to players and mobile phones‎.‎ ‎(‎If the phone is set not to allow automatic connection of Bluetooth‎,‎ the phone will be prompted to connect or not‎,‎ different phone models will be slightly different‎.‎‎)‎Phone calls when your Bluetooth MP3 is playing music‎,‎ the player will automatically switch to hands‎-free mode‎,‎ press the answer key to the Bluetooth hands‎-free calls‎,‎ end the call and then automatically switches back to the music player state‎,‎ you can press the Bluetooth key to hang up to end the call directly answer‎.‎Specifications‎:‎1‎.‎ a2dp function‎.‎ Phone with a2dp function ‎(‎also means stereo Bluetooth‎)‎‎,‎ may be able to play music in your phone through the car stereo AV connectivity ‎(‎some phones expand playback music called different names‎,‎ the same connection method as described above‎)‎‎.‎2‎.‎ Different phones can be connected to different Bluetooth services simultaneously‎,‎ but at the same service can only connect a cell phone‎.‎ Such as A phone connected phone calls‎,‎ B to connect to the phone calls must take the A phone is disconnected‎,‎ but the function ‎(‎in the case a2dp A feature phone is not connected‎)‎ B phone if a2dp‎,‎ B phone can single connection a2dp function‎.‎ A phone call that is hands‎-free‎,‎ B phone can play music through the Bluetooth player‎.‎ In this case‎,‎ if an incoming call or make a call‎,‎ the phone will automatically take precedence‎.‎ It will be automatically transferred to a2dp playback after the call ends‎.‎3‎.‎ Priority‎:‎ different functions are used in the case of priority as follows‎:‎Phone calls> a2dp player‎,‎ U disk music player‎.‎Click priority order‎,‎ any high‎-priority function is activated‎,‎ the low priority will be suspended after the end of the high‎-priority ‎,‎ low priority will be restored‎.‎Type‎:‎ Bluetooth Handsfree PhoneRated Working Voltage‎:‎ 12VLimit Working Voltage‎:‎ 9‎-26VWork Rate Consumption‎:‎ 1WOperating Temperature‎:‎ 0 to 50 degreesSupport Playback Format‎:‎ MP3‎,‎ WMASNR‎:‎ >60dBDistortion‎:‎ 0.1%Frequency Response‎:‎ 20Hz‎-15KhzLeft and Right Channel Separation‎:‎ >60dBBluetooth Version‎:‎ 3.0USB Output‎:‎ 5V/2ABluetooth Sound Processing‎:‎ with A2DP ‎(‎Advance AudioDistribution Profile‎)‎ FunctionBluetooth Transmission Distance‎:‎ 10m‎-15mFM Transmitting Frequency‎:‎ 87.5‎-108.0