Feature: supports WMA/MP3 audio format supports JPEG photo format built-in speaker games,calender,timer Three recording methods available: AV-in, microphone only, audio only supports multi-language(chinese/english) supports 1GB SD card size: L99?60?18(mm) built-in lithium battery E-BOOK function EQ mode:pop/classical/normal/rock/jazz weight: 120g 2.5inch TFT screen camera with 5million pixels supports ASF video format