A20 Car FM Transmitter bluetooth 3.5 Hands-free MP3 Player Mobile Phone Holder Support TF Card U Disk Playback

Description 1 Transmit the music from micro SD card U disk Up to 32G to car stereo via FM signal or Aux in 2 Transmit the music navigation of your bluetooth enabled smart device to car stereo via FM signal or Aux in 3 Safe Phone Calls while Driving 4 One button switching subwoofer 5 Play lossless music in FLAC MP3 APE WAV format from micro SD card U disk 6 Quick Release Button Press button on back of unit to slide open and then take out mobile phone Press the arms on both side to clamp mobile phone again simple of operation save time and power 7 360 Degree Rotation The fully 360 degree rotation provide you with viewing angle The holder ensures safe driving whether you are talking navigating listening to music or charging 8 Broad Compatibility suitable for width size from 1 9 inch to 3 8inch smart phone or electronic devices Specification Model A20bluetooth version bluetooth5 0Transmit power Class 2 6 dBm 4 dBm bluetooth Operating band 2 4G ISM band 2 402 2 480 GHz Input voltage 5 VEffective bluetooth range 5 meters or moreFM Frequency 87 5 MHz 108 MHzSupporting protocols A2DP1 3 HFP1 7 HSP1 2 AVRCP 1 6Read U disk Micro SD card capacity up to 32GWeight About 130 g Function Function name Operation Method and StatusPower on 1 Plug in the power supply USB 5V 2 In the power on and shutdown state short press the MFB buttonPower off 1 Long press the MFB button for about 2 seconds 2 Disconnect the power supplyAiroStereo pairing 1 After turning on the de