or descending order 
by clicking on the relevent icon next to the column title.
Using your mouse, hover over the cells of the table. The corresponding column and row will be highlighted to assist you in comparing our products.
Click on the relevent cell, for example Volts, within the product row and the highlight will be anchored to the row and column.
You can now continue your comparsion by hovering over the cells that interest you, which will again highlight the relevent row and column, leaving your previous selection visible.
Where relevent, products can be sorted in ascending order or descending order by clicking on the relevent icon next to the column title.