? Car BT MP3 supports hands-free calling, a built-in high-sensitivity microphone, HSP bottom noise, and echo suppression. Knob design, one-key operation to adjust the volume/answer / hang up / call back. ? Upgraded version 5.0 BT chip, the connection is more stable, and the automatic connection is faster. Smart MP3 player, support mobile phone/network/all kinds of music APP software/map playback. ? Support TF card and U disk extended playback. Support lossless audio decoding, high resolution, high-performance stereo, support WMA, APE, FLAC, WAV, and other lossless music formats. ? Dual USB car char-ger, PD 18W fast charging: 3A/3.6-6.5V, 2A/6.5-9V, 1.5A/9-12V. Fast charging PD 18W charging speed is 4 times faster than ordinary 5V/1A. (Mobile phone needs to support fast char-ge protocol function). ? Support LED colorful atmosphere light display, playback breakpoint memory function. Support key operation to switch folder playback.