Parameter:
Chip: TPA3116D2*2
Input Mode: Bluetooth / 3.5mm AUX
Work Voltage: DC 5V-24V (Recommend 12V or more, 5A or more)
Channel: 2 channel Stereo Output
Bluetooth version: Bluetooth 5.0
Bluetooth transmission distance: 50 Ft
MAX Power Output: 100W x 2
Match Speaker: 50 - 300W, 4 - 8Ω

1. How to choose a power supply?
●The power supply must be highly valued. It is recommended to use 18V 19V 24V power supply with a current of more than 5A.
●If the voltage is too low, the sound will be easily distorted after the sound is amplified; if the current is too small, it will not work normally or the sound quality of the speaker will deteriorate.
●If you only have 9V 12V or 1A 2A power supply, you can also use it, but it is recommended to use it with a speaker with low power. Otherwise, if the volume is maximized, it may be distorted and affect the sound quality.

2 How to choose a speaker?
●Commonly used speakers are generally 8Ω, 4Ω speakers are also available, no distinction between positive and negative polarity.
●If the power of your speaker is low, it may be between 10W-30W, then the power supply voltage should be lower to prevent the speaker from being burned after amplifying the sound, for example, choose a power supply below 15V.
●If it is a 50W-300W speaker, you don't have to worry about the speaker burning out. You can choose a 12V-24V power supply. The higher the voltage you choose, the greater the output sound or power.

Package Includes:
1. Bluetooth Power Amplifier Module * 1
2. Acrylic shell * 2
3. 16mm Copper column * 4
4. 9mm Screw * 8, 5. Steel nut, screw mat * 1
6. 20cm power cable * 1
7. Screwdriver * 1,
8. Knob * 1