This sound amplifier is the perfect ally for the youngest adventurers to listen to every sound of nature or to spy on secret talks; Connect your headphone (included) to the sound amplifier. This is the ideal accessory for observing nature and playing spies. Target the sound you want to hear. Press the trigger and discover all the surrounding sounds. For ages 6 years and over. Batteries required: 2 x AA (not included) . Manufacturers 2 year guarantee. WARNING(S): Not suitable for children under 3 years old.