Bluetooth Handsfree Car Kit Bluetooth MP3 Player Powered By deelife 4 Functions in one device (4 in 1) Phone call handsfree Music play FM transmitter Apps sound Features Phone Call Handsfree -- Support 2 phones connection at the same time-- Support Answering/Ending/Rejecting phone calls, Redialing the last called number Music Play -- Bluetooth music play&TF card music play -- Play/Pause music, Next/Previous song, Volume +/- -- Knob design for adjusting the volume, convenient and practical FM Transmitter -- Wireless Transmit audio to your car FM receiver -- Transmit Bands range 87.5 -108.0 MHz -- Support disable FM transmitter function while in AUX mode Phone Apps Sound -- Support Navigation Voice, Online Music, Online Radio, etc Built-in Ground Loop Noise Filter -- Can achieve a clear speech/music LED Screen -- Can display frequency, song number, and work status information English Voice -- For Reading Incoming Phone Number -- Voice Announcement Device Status AUX-OUT Cable -- 3.5mm Jack wired audio transmission, More stable Dual USB 5V/2.1A Car Charger -- Can charge your phone at the same time Magnetic Base -- With 3M 300LSE adhesive tape, can install on anywhere you like that is convenient to operate Bluetooth 5.0, Universal Bluetooth Compatibility -- With all iPhone, Android phones and tablets Parameter Bluetooth Receiver Bluetooth receiving sensitivity: -85dB Microphone sensitivity: -42dB Microphone directivity: Omnidirectional Bluetooth transport distance: 10 m Degree of distortion: < 0.03% SNR: AUX