This pen scanner has an integrated speaker that plays authentic digital recordings of 206 bird songs (and 10 frog calls) as it scans barcodes that correspond to each species in the 54-page book, allowing you to quickly identify bird calls in the field. The book has detailed, color illustrations that aid identification of physical characteristics and, underneath each picture, mnemonic phrases help you remember each bird song (such as "gee whiz" for the Blue-Winged Warbler). Ideal for the novice or advanced birder, the entire unit stores unobtrusively in a front pocket, ensuring ease of portability in the field. Includes 216 bird and frog song barcode stickers that can be placed on field guides, two AAA batteries, a carrying case, and a holster. Scanner: 7" L. Book: 5" H x 4" W x 1" D.