about The Product1. Premium Tempered Glass Film Is Made With Specially Processed Glass To Protect The Screen Of The Device From Shocks And Scratches 2. Oleo-phobic Coating - The Oleo-phobic Coating Can Prevent Fingerprints Or Other Stains, And Make The Film Easy To Clean 3. Sensitive Operation, Delicate Touch - The Self-adhesive Silicone Can Touch On The Screen Smoothly. It Makes The Installation Easy And Is More Sensitive For Operation 4. Light Transmission Rate Up To 99% 5. 9h Surface Hardness - The 9h Hardness Can Effectively Protect The Screen From Scratches And External Shocks 6. Exquisite Workmanship, Ultra Thin 7. Perfect Adhesion 8. The Product Is Eco-friendlycautions1. As This Is A Glass Product, Please Note That The Edges Of The Glass Are The Most Vulnerable Areas. 2. When Removing For Re-use, The Adhesive Properties Might Wear Off To An Extent Where The Screen Protector Will Not Adhere To The Device. It Is Not Recommended To Rouse The Glass Protector Once It's Been Applied. 3. Using Excessive Force Who Installing Or Removing The Screen Protector May Damage The Product.installation Instructions1. Please Use The Alcohol Swab And The Microfiber Fabric To Clean The Lcd Screen Before Installation. 2. Peel The Protective Layer Off The Adhesive Side. 3. Carefully Align The Glass To The Screen. 4. Press The Center Of The Glass Then Adhesive Part Will Spread Over All Parts Smoothly.single Or Double: External Batteryinput Voltage: 114mm*60mm*0.26mminput Current: 8gfactory Model: 3gp