Built-in Bluetooth 5.0 core, no popping, no audible noise when the Bluetooth connection is established, designed for customers seeking HiFi sound. USB/SD card input to support flash drives or SD cards. Designed with volume, treble, and bass control buttons for finer sound adjustment, lots of fun and high-performance playback. Compatible with mobile phones, computers, tablets, laptops, TVs and projectors with AV audio, etc.
