How to make 2 Tone alarm in Urdu
Digital clock ke sath aam tur par DC bazer batur alarm istamal kia jata hai. Is ki awaz na sirf kam hoti hai balke kano ko achi bhi nahi lagti. aae apko essa alarm banane ka tariqa batae jo na sirf 2 tone me awaz de ga balke is ki awaz bhi khasi boland hagi.
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