Power will not turn on
- There may not be enough battery power left.
- Charge this product.
- The battery power of the charging case may have been depleted while charging the earphones.
- Turn on the power manually by holding down the function key on each earphone (L, R) until their indicators light blue. After this, charge the charging case.
- The product is temporarily not functioning in a stable way.
- Reset the earphone.