Features: 1.USB2.0 provides high reading and writing speed, plug and play, no driver installation required. 2.High-speed flash memory, no external power supply, fast data transmission, support mobile phone OTG. 3.The additional storage space of the mobile device can store photos, music, videos and other files. 4.Novel cartoon design USB flash drive, with strong and soft silicone protective cover, shockproof and anti-Electromagnetic . 5.Suitable for digital data storage, transmission and sharing, and suitable for data storage such as music and photos. specification:Item Type: USB Flash Driver Material: Silicone Appearance: Perfume Bottle USB Connection, Hot-Swappable Playback: Support Different Types of Operating Systems: Support Hardware Requirements: PC, Laptop, for OS X with USB Connection PackageList:1 xUSBFlashDriver NoteRegarding the capacity standard: there is a difference between the manufacturer and the PC. The PC's 1GB=10.7374182.4 billion bytes, the market standard is 1GB=1 billion bytes so the actual capacity of the u disk is 16GB= Approx. 14.5GB?15.5GB 32GB= Approx. 28GB?30GB 64GB= Approx. 58GB?60GB 128GB= Approx. 119GB?124GB