... .11 b / g / n GPS: support GPS navigation, built-in compass E-book function Supported formats: TXT, PDF, CHM, UMD, PDB Internet ... : Supports QQ and QQ video chat, E-mail support Applications: to support Google Android Market HD playback ... , M4A, MP2 Audio: Support multi-EQ sound Speaker: Built-in speaker, built-in 8Ω, 1W speaker (dual channel); signal to noise ratio ...