handheld gaming device, Steam Deck, OLED screen, Variable Refresh Rate (VRR), ergonomic design, matte black finish, thumbsticks, action buttons, D-pad, touchpads, triggers, glossy screen bezel, portable, high-definition gaming, dynamic shadows, smooth gameplay, ambient occlusion, realistic textures, anti-aliasing, in-game lighting effects, 3D audio, haptic feedback, Wi-Fi connectivity, USB-C port, SD card slot, gaming on-the-go, soft backlight, energy-efficient display, close-up shot, soft-focus background, indoor gaming setup, comfortable grip, modern technology.