Hands-free Bluetooth Car FM Wireless Audio Adapter Receiver

Wireless Bluetooth FM Transmitter Car Kit Radio Receiver 1.44 Inch Display 2.1A USB Car Charger MP3 Player Read Micro SD Card and USB Flash Drive. This is a Hands-free Bluetooth Car FM Transmitter Audio Adapter Receiver Wireless Voltmeter Car Kit TF Card AUX 1.44 Display Spec: Format: MP3 Rated Operating Voltage: 12V---24V Working Voltage Limits: 9V-----28V USB Output: 5V/3.4A Memory Card Format: MP3 WMA Wav Fla Bluetooth Version: Bluetooth V3.+EDR Frequency Response: 20Hz-15kHz FM Transmission Frequency: 87.5~108MHz FM Transmitter: Stereo Digital Pll Locking Working Temperature: 0~50 Degree Support full frequency range:87.5-108MHz  Support AUX in-out With 1.44inch screen for displaying the name of music and caller ID                                     Support A2DP, play music from paired Bluetooth cell phone                                    Remember the last FM frequency and pair cell phone automatically once power on.                                                 Support MP3 music input from TF card                                                  With USB output 5V 2.1A for fast charging             Support Bluetooth hands-free talk (with built-in microphone) Display the start-up car battery voltage