... Frequency response: 20Hz to 20000HzInterface: 1*Mini USB 2.0, 1*3.5mm earphone jack,1*DC jack, 1*TF card slotIn/Output :input:AC100 ... Outlook, Calibrate screen, Keyboard, WIFI, Camera, all Card Slot and USB Slot, G-Sensor, Bluetooth, Microphone, Speaker2. We shall test if ... there is any other special function.3. Accessory Test: Battery, USB Cable, Earphone, Charger, TF cardPayment:We accept payment via ...