... 1.5A Type:Li-ion 3000mAh Sound record:MIC record: build-in WAV record SystemCPU:Rockchip2729Interface:USB Port,TF card, Earphone ... cardCapacity:4GExpend storage:TF,Maximum 32GB supportedscreenPanel size: 7" digital screen, 16:9Features:Resolution: 800(H)×480(V) ... etc. 720P Image formats:JPG/BMP etc,backgroundSound record:MIC record: build-in WAV recordSpeaker:Build-in speakerBatteryType:Li ...