Product multiple: large lens: 3 x 45mm; small lens: 6 x 22mm Product power: the use of high life 1 LED white light lamp、 2*CR2016 button 3V battery (batteries included) Dimensions: 2.17 in x 0.24 in x 3.54 in (5.5 cm x 0.6 cm x 9.0 cm) Weight: 1.13 oz (32 g)