4K Video close up man hand in suit using tablet with black background

digital tablet device screen using digital tablet mobile app touch screen technology mobile phone smart phone computer portable information device computer monitor digital viewfinder connection typing wireless technology human hand portability film - moving image social media finger telephone hand human finger reading internet 4k resolution looking holding communication gesturing watching computer network sharing non us film location message close-up business people touching human body part equipment horizontal males asian and indian ethnicities well-dressed lifestyles thailand