Secure&Quality Assurance?:operating temperture range is between 0? and 70?, storage temperture range is between -40? and 85?,high quality guarantee.Half an hour of continuous use of the USB flash drive, the temperature will not exceed 52 °C. Huge Compatibility?:The flash drive plug and play, no need to install any software. You can easy backup from phone to PC . You can freely watch movies and listen to music just plug the USB C thumb drive into your phone.Support Windows /Mac OS, Compatible with USB 3.0 and USB 2.0 .Supports all Kinds of PC and Type-C Devices that feature OTG function. Safe and Durable?:The high-quality alloy is used on the outside of the USB flash drives to ensure its sturdiness and anti-fall. so that its service life far exceeds that of other similar products, which makes you to store your data with more confidence. Small and Key Chain Design?:The thumb drives is so small and handy that you can put it in your pocket or purse.The end of the usb flash drive has a loop that can easily be attached lanyard,and for easy carrying,no need to worry about losing it. Major innovation?: This USB flash drive utilizes the latest USB 3.2 Gen 1 up to 260MB/s, Greatly increase the read , our USB flash doesn't drop speed when used, other U-Disk are written from high to low speed, which seriously affects work efficiency.