Toply Super Alkaline AA LR6 1.5V batteries.
The batteries are a super alkaline type with a voltage of 1.5V.
They are marketed as being able to outperform standard zinc-carbon batteries by as much as 6 times.
The packaging states they are "up to 6x longer lasting" and contain 0% mercury and cadmium.
The product is available for purchase from stores like Addisber.