... packing design serivce 4.cost competition cheap Wireless Variety color Hot sell hangers earphone Technical Data:Speaker Dia: 40mmSensitivity: 98dB S ... Calibrate screen, Keyboard, WIFI, Camera, all Card Slot and USB Slot, G-Sensor, Bluetooth, Microphone, Speaker2. We shall test ... is any other special function.3. Accessory Test: Battery, USB Cable, Earphone, Charger, TF cardPayment:We accept payment via ...