DIY bluetooth receiver using old bluetooth headset.

Hello everyone, here I am making a stereo bluetooh audio receiver using an very old NOKIA BH-503 headset. the headset is in working condition but i barely use that, so I decided to do some fun with that so that i can use them in my tiny usb speakers with my phone or laptop without connecting audio jack. or I can use this in my car stereo as an bluetooth device using an aux in it.
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Thank you for watching. :)
have a wonderful day.

equipment I used-
camera - , Nikon Coolpix p900, iphone 5S, honor 8x
gorilla tripod- https://amzn.to/33AWvGT
microphone arm - https://amzn.to/3aa6sNE
screwdriver set - https://amzn.to/3ajvTg9