How to make Bluetooth Speaker4 inch 40WandProduct Model: ZK-TB21 Max100Wទាក់ទងតាមTelegram 0964810105

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Product Name: 2.1 channel audio amplifier module with
Product Model: ZK-TB21
Bluetooth Version: 5.0 (no shielding, 10 meters)
Input Sensitivity: 500mV Audio Input: AUX + Bluetooth
Channel: 2.1
Chip Solution: TPA3116D2 (with AM interference suppression) Power Range: DC12-24V/5A above (high power recommended high
voltage)
Adapter Speaker: 20W-100W, 4-80 Output Power: Max 50W @ R&L channel
Max100W @subwoofer
Protection Mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection
Product Dimensions: 120mm*100mm*20mm / 4.72in*3.97in*0.79in
Package Weight: 256g/0.56 lb
PS: In the audio input is enough, the supply voltage/current is enough, there will be enough output power! The higher the supply voltage, the greater the output power. The smaller the im- pedance of the speaker, the greater the output power! Please ensure that the power of the adaptor is greater than the actual working power of the amplifier!
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