For you're like photo selfie, definitely should have a tool that could make it easier to take foto.there are some tools that can be used which can be purchased at amazon(or other online shop).you can choose between taking the cable connected headset or connected with bluetooth.now i make which can be operated by ir remote with connected them on headset.
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Step 1: Things You Need
BD140 or any pnp transistor should be work
BD139 or any npn transistor should be work
Resistor 10K 2 pieces, a 220 ohm,a 2.2k ohm
Battery cr 2025
Step 2: Schematic
Step 3: Test
You see how it action on this video