Modern smartphones use proximity sensors for much more than just turning off screens during calls. These advanced sensors, powered by IR emitters and receivers, detect nearby objects like your ...

<p>Modern smartphones use proximity sensors for much more than just turning off screens during calls. These advanced sensors, powered by IR emitters and receivers, detect nearby objects like ...

Nikon D3400 24.2MP DSLR Camera best price is Rs. 25,000 as on 30th June 2025. See full specifications, expert reviews, user ratings, and more. Compare Nikon D3400 24.2MP DSLR Camera prices before ...