... 1. Demension: 11mm X 15mm X 1mm 2. SD speed class: Class 6 3. Read speed: 14MB ... Working voltage: 3.3V 5. Full Capacity with steable quality, not upgrade card 6. Warranty: 10 monthsAccessories Available: housing, ... battery,silicon protector,screen protector,usb data cable, memory card, card reader,holder and etc. Spare Parts Available: lcd ... quality problems 4 GB TF/Micro SD Card high quality high speed