1). 2012 best selling Silicone watch; 2). LED watch; 3). Display time, date, USB used ... service;2. Large tape, suitable for wearing;3. LED screen, display time, date and battery's capacity;4. ... display USB's used capacity and remaining capacity, as to learn the USB well;5. Capacityr: 32MB~32GB ... memory for options;6. LED wrist watch;7. Built-in rechargeable lithium battery, 110mA ...