With this sound amplifier you can hear the sounds of the animals in the forest better, so you can better search for where the animals are. With the sound amplifier you can focus very specifically on a certain point so that you can hear the sound of that point very clearly. Through the included headphones you can hear these soundsNote: the amplifier requires two LR06 AA batteries, these are not included.Specifications:Colour: green, brown, transparentGender: juniorMaterial: plasticDimensions: 16 x 21 cm (L x D)Batteries needed: yesBatteries included: noAge: from 4 yearsContents:1 Amplifier1 Headphone