Enjoy portable gaming with the handheld console. Featuring a sleek black and white design, this console offers a 3.5-inch screen for immersive play. Perfect for gaming enthusiasts on the move. Q21 handheld game console, a portable retro gaming device.  It features a 3.5-inch high-definition screen.  The console typically comes with a large library of built-in classic games, often advertised as 500 games in one.  It is designed to provide a nostalgic arcade experience, primarily for children, with simple controls.  The device is USB rechargeable and contains a 1020mAh to 1200mAh capacity battery.  The packaging mentions features such as SRS (sound reproduction system) real sound, H.264 video compression, and USB connectivity