Description:Model: Xiaomi Mi 4High technology，intelligent control outside the windows touch function of the software.High intelligence，can be arbitrarily set outside the windows touch keyboard shortcuts.More convenient， fast implementation let function is everywhere.High scratch-resistant， use original scraping resistance materials imported from Japan.<br>How To Use ItStep 1: Please use theprofessional cleaning set and blue screen electrostatic dusting membrane will clean up the screen.Step 2: Tear off the sticker 1 from type membrane ， aim the film screen holes and edge ，slowly put the sticker labeled.Step 3: With your fingers gently press the middle part， make the film adsorption on the screen automatically.Step 4: With the fingers or blade to crowdout the rest of the tiny air bubbles.Step 5: Scan the QR code，download software，install the software.Step 6: Open the software function menu ， settings you want quick function keys.<br>                               Traditional Touch               Smart Touch                   Phone Fuction Expansion               NO               Yes                   Smart desktop               NO               Yes                   Non-restreat switch               NO               Yes                   Shotcut Key               NO               Yes                   Touch Area               Touch Screen               Touch Screen+Frame                   APP Usage               NO               Yes                   More applications switch               More steps               One step                   Traditional applications               Protection:         Dust-proof         Explosion-proof         Scratch-proof         Abrasion-proof               Protection:         Dust-proof         Explosion-proof         Scratch-proof         Abrasion-proof      <br>  Package Included: 1 x Protective Film 1 x Fiber Cleaning Cloth  More Details: