... SharpenerImportant Safeguards 1,Please read all instructions carefully before use.2,To protect against the risk of electronic shock, do not ... protection.7,Applicable voltage 100-240 VAC, 50HZ—60HZ.How to useFirst ensure the power switch of the sharpener is disconnected ... of T1030D.Under normal circumstances, it is suggested to use weekly or daily, to keep your blade sharp at any time. Electric ...