when you driving a car , calls coming in , u have to use one hand to run ur phone . To avoid such illegal things, PPL talk via bluetooth earphones .
To detect car back things , ppl make sensor with camera for safety driving .
Now there is hot item called bluetooth rearvirw mirror with built-in 3.5" TFT . driver could see caller when driving once ur phone paried with such device ,
When you place your...
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