This memory card has waterproof, shock - resistant, cold - resistant and heat - resistant functions, no need to worry about the durability of the memory card. MIni size and portable, user-friendly. Features: Endurable, high-performance, high reliability. Strong and long-lasting, can work inbadenvironment. APP runs more smoothly. File transfers are smoother,video loads faster. Compatible with most HUAWEI cell phone model, like Mate 20/ Mate 20X/ Mate 20PRO/Mate 20RS/ Mate 30PRO/Mate 30 4G/Mate 30 5G/Mate 30 5GPRO/Mate 30RS/ Mate xs etc. Specifications: Item type: TF Card Reed speed: 90M/S Write speed: 70M/S Operating temperature: 0-70 Storage temperature:-25-85 Type: 64G, 128G, 256G(optional) Package weight: 0.25g / 0.01ounce Package size: 12.3 * 8.8 * 0.7mm / 0.5 * 0.3 * 0.02inch(Length * Width * Height) Package List: 1 * TF card