Sound Box

Koleer Portable Bluetooth Speaker

Koleer Portable Bluetooth Speaker

Koleer Portable Bluetooth Speaker: Koleer Portable Bluetooth Speaker is one of the best Bluetooth speakers at a low price. It was around 10 Doller only. model is M10125452. we can use USB, TF card, Bluetooth, and also auxiliary input from others.  Power output:- 5W Frequency response:- 70Hz-18k Distortion:- <1% w1KHz …

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how to make speaker protector circuit?

Speaker Protector NE555N

how to make a speaker protector circuit? This is a speaker protector circuit diagram using NE555N IC. Every brand amplifier has its own speaker protection system. But the handmade amplifier has no speaker protection in the circuit board. For this case, we have to use another speaker protection circuit. Here …

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