Features: 1.HIGH DEFINITION VOICE CALL: The car bluetooth hands free adopts the new generation of bluetooth 5.0 technology, which ensures the high definition voice call quality, realizing a clear and more vivid call experience. 2.MULTIFUNCTIONAL USE: The car bluetooth hands free not only has the hands free phone function, but also has the voice input function, which can be used for one touch dialing, answering calls and other operations, providing a more convenient and safe driving experience. 3.ONE TOWS TWO FUNCTION: Car hands free supports pairing two cell phones at the same time, which is convenient for drivers and passengers to connect to the car visor Bluetooth hands free system at the same time, realizing multi device calls. 4.NAVIGATION VOICE GUIDANCE: Car hands free supports navigation voice function, which transmits the navigation instructions to the car visor Bluetooth hands free system, which is convenient for the driver to receive the navigation instructions and improve driving safety. 5.INCOMING CALL VOICE ANNOUNCEMENT: Car bluetooth hands free supports incoming call voice announcement number function, when there is an incoming call, it will inform the incoming call number through voice, which is convenient for the driver to quickly determine the importance of the incoming call. specification:Item Type: Car Bluetooth Hands Free Material: ABS Bluetooth: 5.0 Wireless Range: About 10m/32.8ft Function: One to Two Simultaneous Pairing of Two Cell Phones, Voice Input, Incoming Voice Announcement Number, Play Cell Phone Music, Navigation Voice, Boot Automatically Back to the Connection Battery Type: Built In 600mAh Lithium Ion Battery Talking Time: About 10 Hours Standby Time: About 500 Hours PackageList: 1 x CarBluetoothHandsFree 1 x Back Clip 1 x Data Cable 1 x Instruction Manual