seeseng,

I am computer iliterate , I want to send a recorded pic of my bird call to you and let u have a look. How should I do that.?

By the way I am planing to use car stereo for the sound system . How many watt of amplifier I need to have to support 60 tweeters? Car stereo is 12w so I have to use adapter? Please advise.

I make more than 10k every  month already from my other business .This swiftlet thing is just an interest. I guess u r unable to make that money so u trashed it out on other people. Sad , loser. I guess u should pick up some books and improve yrself n hope one day u r free of financial stress. We all swiflet farmers r free of financial stress. Please buck up or else you may not be able to take care of your son n he will blame you for the rest of yr life for unable to send him to the best university. Good luck, may good bless u!