Retro Game Console: Equipped with upgraded chip,the game Console is compatible with 8&16bit games. With 2 PCS wireless controller 4K HD HDMI output, 1080P HD quality More than 20000 retro classic games are pre-installed in the game console Dedicated controllers: Why the controller not sensitive? 1. Confirm whether the battery power is sufficient, the battery compartment is on the back. 2. Whether there is strong electromagnetic interference around, normal electromagnetic