Package included:
<br />1 x Mini Bluetooth Digital Amplifier Board 
<br />1 x External bluetooth antenna
<br />
<br />Features:
<br />1. Adopting original TPA3116 and CSR4 .0 bluetooth module
<br />2. Coupling capacitor adopts German Simens 1UF
<br />3. Electrolytic capacitor signal main circuit USES Taiwan famous brand, nikon is special electrolytic capacitor is used in the main filter capacitor capacity of 3 1000 uf acoustics special capacitance 1000 uf / 50 v, continuous power to ensure a strong support
<br />4.  Resistance to choose high precision SMD resistor, main circuit adopts precision 1% of five rings, metal film resistors, ensure the machine good signal-to-noise ratio
<br />5. PCB used 1.6 mm thick double-sided board, 2.0 oz copper thick, tin the whole process, to ensure that the size of the current good performance by the first-class quality of PCB
<br />6. The fully enclosed dust-proof potentiometer, performance is more stable, more durable than ordinary potentiometer
<br />7. Brand new bluetooth version 4.0
<br />8. Input mode: simulation and Bluetooth input function. (Bluetooth input priority)
<br /> 
<br />Specifications:
<br />1. Working method: D-Class
<br />2. Static current: 50mA
<br />3. working efficiency: 90%
<br />4. Rated output power: 2*50W+100W
<br />5. Frequency: 20Hz to 20KHz
<br />6. Working voltage: DC18V to DC24V
<br />7. Max current: 3A