Smart Noise Cancellation Enjoy High-Quality Live Sound Enjoy Car Wireless MP3 Charger Lossless Audio Decoding A Wireless 5.0 chip and high-performance audio decoding module offer HD lossless quality.Support WMA/APE/MP3/FL AC/WAV lossless format. A Dual Core Processor No Background Noise An internal chip with optimized circuit technology and a MCU + DSP dual-core processor effectively eliminate background noise and prevent frequency interference. Upgraded LED Digital Display A digital display shows the voltage once power up. Double Reminder for Wireless Connection Wireless indicator light flashes and a voice reminder sounds when the wireless pairing is successful. Dual Charging Port It can charge phones, tablets, computers, etc. Play Music witha TF Card/ USB Disk and AUX Outputs Plug and play from more high quality audio sources. Optimized Buttons and Functional Zones Different functions are integrated in the round button. A Convenient Large Rotary Knob The outer ring of the car charger is a large rotary knob. Hands-Free Calls Audio Navigation Press one button to answer/hang up. It can connect a phone for audio navigation through car speakers. Auto Re-Connection Power Failure Memory Power failure memory function of frequency allows it to play from the exact sentence of a track played before. Stepped BayonetNever Stop Charging Despite of Strong Bump