Supports reading and playing MP3 music files from USB flash drives and TF cards, offering a convenient way to enjoy stored audio content. Built-in Bluetooth receiving function, enabling it to connect to mobile phones and receive Bluetooth-streamed music wirelessly. Powered by a 7.4V lithium battery; compatible with a DC9V/1-3A charger for recharging. Features an AUX IN port for external audio input, allowing connection to computers (or other devices with AUX output) to play audio. Equipped with a wired jack on the panel, designed for connecting microphones-suitable for singing or karaoke scenarios. Specification: Product model: 7.4V-805 Support voltage: 9V-12V Output power: dualoutput 25W+25W Bluetooth version: 5.0 FM radio: supported Bluetooth music: supported Channel: stereo Microphone: supported USB: supported TF/SD: support Remote control: supported adiustment: supported Color: As Shown Material: Metal+Plastic Package Contents: 1*Amplifier board 1*Remote control 1*Radio cable 2*Speaker cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.