Super mini sized wireless bluetooth controller, special designed for 2D games. With the size of 2.9"x1.5"x0.6" and the weight of 0.74oz, it can be taken anywhere you go and be played at any time. Built-in 180mAh Li-on rechargeable battery, 8 play hours with 1-2 hour charging time. Compatible with Nintendo Switch, Windows, Android, macOS, etc. Upgradeable firmware, five controller mode to play with, X-input, D-input, Mac mode, Switch mode and Keyboard. One-year of free return/replacement guaranteed.