Dual-channel Bluetooth power amplifier, supporting Bluetooth USB, TF card, FM radio multi-mode playback, dual microphone interface, independent adjustment of high and low frequencies, digital screen display. The metal body is conducive to heat dissipation, compatible with passive speakers, suitable for home use, shops, and small outdoor scenarios, and can be used to build a simple audio system. It is a practical audio device for building a small audio system.

The device is equipped with Bluetooth reception function, which can wirelessly connect to mobile phones, tablets, etc., and play the audio content stored in the device, eliminating the complexity of wire connections. The body comes with a USB interface and TF card slot, and by simply inserting a USB drive or TF memory card, you can read the audio files inside and play songs locally. It can be used normally even in environments without Bluetooth signals. Additionally, it has FM radio function, allowing reception of local radio signals and listening to radio programs.This dual-channel Bluetooth power amplifier is suitable for both indoor home use and outdoor small-scale amplification scenarios. It supports various input methods for audio sources and can be paired with speakers to build a simple audio system, meeting basic usage needs such as listening to music, broadcasting, and small-scale voice amplification.

The panel is equipped with two sets of microphone interfaces, supporting the simultaneous connection of two microphones, suitable for home karaoke, store announcements, and small-scale speech use. The knobs are divided for independent adjustment of treble, bass, microphone volume, and total volume. You can finely adjust the sound effect according to your preferences to find a listening style suitable for the environment. The high-definition digital display can intuitively show the current working mode, and the switching between Bluetooth, USB, TF card, and radio modes is clear at a glance. Combined with the function buttons, the operation is simple and easy to understand.

The body is made of metal, which helps dissipate heat during operation, reduces heat accumulation caused by long-term operation, and improves the stability of the device. The dual-channel output design allows the left and right channels to speak independently, providing a three-dimensional listening experience, and is compatible with multiple passive speakers. It can be used in home living rooms, shops, small stores, and outdoor small gatherings.

The mode switching is convenient, with one-click switching between Bluetooth, USB, TF card, and radio input sources, eliminating the need to repeatedly plug and unplug wires. The overall size of the device is compact, taking up little space when placed, and it is also convenient to move and carry.

When using, it is necessary to pair with passive speakers. Before wiring, make sure the power is off, and connect the speaker wires according to the markings. The volume adjustment is recommended to be done gradually to avoid sudden excessive volume that may damage the speakers. The placement environment should be kept ventilated, away from damp and high-temperature areas, which is beneficial for extending the device's service life. Whether it is for daily leisure listening, home simple karaoke, or background music playback in stores, this power amplifier can handle the task and is a practical audio device for building a small audio system.