Car MP3 Player BT Wireless FM Transmitter Audio Stereo Dual USB Port Car Charger Support Hands-Free Calling USB Flash Drive Voltage Display

Features:
Support BT wireless connection and U disk playback, lossless sound quality.
Dual USB ports, support 3.1A quick charge, built-in over-current and short-circuit protection, safer to use.
Support hands-free calls, built-in noise reduction microphone, clear calls, answer/reject/recall in one key.
With digital display, real-time monitoring of battery voltage and frequency, easy to read ans safer to drive.
With power-off memory function, automatic connection after power-on, memorize frequency, more intelligent.
It is suitable for most 12-24V mainstream models on the market.