This unit is bright blue when charging and charging. When the handle is fully charged, the light is off. The PS4 dual-charge bracket can charge two PS4 handles at the same time. The blue light indicates during charging. When the battery is fully charged, the light is off and the power is automatically turned off. It can protect your product more safely. (When the USB cable is connected, the PS4 wireless controller must be With the rechargeable battery pack installed, the wireless controller still plays and operates via wireless signals when charging.