Protection and reliability Protection mechanisms include over voltage, over current, under voltage clipping, short circuit, and overheating protection to safeguard connected devices and extend life. Connectivity and performance Bluetooth version 5.1 for stable wireless streaming with broad device compatibility. Supports multiple audio inputs for versatile use: Bluetooth, AUX, and USB flash drive. Power and compatibility Power supply: DC 924V, 3A maximum, enabling installation in vehicles, boats, RVs, and other 12/24V systems. Easy integration and flexible use Designed to integrate with existing audio systems using Bluetooth, AUX, or USB playback, providing a seamless upgrade path without complex wiring. 23 practical use scenarios Invehicle audio upgrade: connect to the vehicle power system (DC 924V) and stream music from a phone via Bluetooth or play audio from a USB flash drive for a cleaner, cable dashboard setup. Marine, RV, or offgrid installations: reliable power from 924V systems supports background music or announcements, with flexible input options for USB, AUX, or Bluetooth sources. Home or office entertainment: quick Bluetooth pairing for wireless playback, or use AUX/USB to play playlists from a USB drive or wired devices, improving convenience in small environments.