CentIoT - NS4158 DC3.4V-5V micro USB Power Amplifier Board - 2 Channel 3W per channel Stereo mini Class D Digital Audio Power Amplifier Board BM062-6S15A-Li-ion It has an inbuilt over

It has an inbuilt over heating and over current protection

is a special time of fuse that is designed to allow a surge in electricity for a short time before the fuse actually blows

It will take 3

If you are looking for a buzzer that automatically produces sound with only DC power connected

or use it with a small solderless breadboard to quickly test circuit ideas without having to solder

CentIoT - NS4158 DC3.4V-5V micro USB Power Amplifier Board - 2 Channel 3W per channel Stereo mini Class D Digital Audio Power Amplifier Board BM062-6S15A-Li-ion It has an inbuilt overBrand: CentIoT Features: Dual panel wiring, properly solve the crosstalk between the ground potential balance and channel wiring Unique without LC filter Class D digital power board, and can be used directly to the computer's USB powered. Two channel stereo, 5V micro USB power supply can output 3W +3 W power, can directly drive 4 8 small speaker output power, full of energy, good sound quality. Excellent noise suppression in the case is not connected