Features The smallest TF card microTF HC / micro TF XC Class 4/10 UHS 1/3 is the standard scalable storage option for many tablets smartphones and sports cameras; Can be used for long-term continuous use of products such as recorders monitoring equipment etc; It can also be used with the optional TF card adapter for standard size SDHC / SDXC host devices. TF format for mobile phones cameras MP3/MP4 players backup and display photos music files and media etc; Working temperature: 0 ° C ~ 60 ° C Storage temperature: -25 ° C ~ 85 ° C; Memory:32GB.