Punex Sk-03 Wireless Bluetooth Speaker.

Connectivity: Uses Bluetooth version 5.4 for wireless streaming. It also typically supports TF/microSD cards and USB drives (up to 32 GB) for direct MP3 playback. Design: Compact and lightweight with a convenient carrying loop, making it suitable for travel or outdoor use. Controls: Includes dedicated buttons for power, volume adjustment (long press), track skipping (short press), and light mode switching.