Key benefits Flexible power compatibility: accepts a DC supply from 9 to 24 volts and up to 3 A, making it suitable for cars, trucks, boats, RVs, and other DCpowered setups without additional adapters. Safe operation with robust protection: builtin protection against over voltage, over current, under voltage clipping, short circuit, and overheating helps protect both the unit and connected equipment. Versatile audio sources: supports Bluetooth wireless streaming, wired AUX input, and USB flash drive playback for simple, flexible music access. Reliable wireless connectivity: Bluetooth version 5.1 offers a stable connection and improved audio performance with compatible devices. Easy integration and use: straightforward connection to a 924V power source and compatible audio inputs, enabling quick setup in existing systems. Key specifications Power supply: DC 924V / 3A Protection mechanisms: over voltage, over current, under voltage clipping, short circuit, overheating Audio input options: Bluetooth, AUX, USB flash drive Bluetooth version: 5.1 What this device does Provides a versatile audio input hub for 924V DC systems, enabling wireless and wired music playback from multiple sources. Ensures safe operation through multiple protective features to guard against common electrical faults. Delivers convenient access to audio content via Bluetooth streaming, a wired AUX connection, or direct USB flash drive playback. Use scenarios Invehicle audio upgrade: install in a car or truck to wirelessly stream music from a smartphone while also allowing wired AUX or USB drive playback for passenger media. Fleet or commercial use: suitable for delivery vans, service vehicles, or work trucks that operate on 12V or 24V DC power, providing flexible audio options for drivers and crews. RV, boat, or offgrid setups: integrate into 12V or 24V systems to enjoy Bluetooth audio or local media playback on longer trips or in remote locations. Notes The description covers power input, protection features, and supported audio inputs and Bluetooth version exactly as specified. No additional features, formats, or specifications are added beyond the original model's capabilities.