7 inch TFT LCD (480*272) Samsung S3C 2440 processor (400Mhz) Star III high sensitivity receiver ,more20 channels Touch Panel Multi-language support with input method Internal Lithium battery(lasts 5 hours) USB 2.0 (full-speed) support WMV,AVI,ASF,MP3,WMA,WAV media format Txt Format Files Browser(Ebook) Photo scan JPEG,BMP SD memory card expansion Headphone/built-in speaker SD Card/Map(option) Locates 10 Meter. 90% Sensitivity 0.1 m/s. Localization time Localization 0.1 s