Feature: 1. Suitable for studying birds and wild animals, the sound detection system is powerful enough. 2. Sound can be captured at a distance of about 100 meters, and the faint bird song can be easily detected. 3. Can stimulate children's imagination and curiosity, help children explore nature and experience the colorful world. 4. The object can be viewed clearly at a close distance, and can be recorded for about 15 seconds. Press the play button to hear the sound using the free headset. 5. 8X monocular telescope has an ergonomically designed handle, which can be easily operated with one hand. Specification: Item Type: Bird Watching Telescope Material: Plastic Sound Distance: 100 Meters Maximum Digital Recorder: 15 Seconds Headphone Jack: 3.5mm Battery Type: 1 x 9V Battery (Need To Be Purchased Separately) Applicable Age: Over 8 Years Old. Package List: 1 x Telescope1 x Headphone1 x Umbrella Plate1 x Lens Cleaner1 x User Manual Note: 1. Cannot be used to observe the sun2. Delivered without battery