1.different capacity of micro sd card 4gb.2.Full capacity ... stainless ,laser pointer ,silicon ,heart ,lighter ,wood ,name card ,credit card ,drinking bottle ,car ,bullet ,flight ,jewelry , plush toy ... and ect.2) Suitable for using large capacity of computer or small size laptop3) High speed, at ... least 10 years of data retention4) Compliant with USB specification 1.1 / ...