It is Poulep Brand Product, Only Compatible For Wii U.
Precautions:
1) If the handle is not charged and powered on, the battery may be locked (when the battery of the handle is exhausted or left for a long time, in order to protect the handle motherboard, the battery will automatically lock), press the reset button on the back of the handle, Wait 2 seconds before charging.
2) When charging, the charging indicator on the front of the handle lights up orange, and when it is fully charged, the orange light goes out.
3) Unless you need to replace the battery or check the battery status, do not remove the back cover of the product.