Product Information Absorb and transfer electromagnetic radiation waves by using special materials and reduce mobile phone radiation on the human brain by 96.43 percent. Function: 1.Anti radiation and Prevent radiation. 2.Energy PowerandFuel Saving. 3.Negative ions,Keep your health. 4.Scalar Quantum Energy for body. Material: Nano-anion Silicone Size: Diameter: 28mm/1.1in Shape: Round Ions Content: 1800-2200 Instructions: 1.Remove the radiation-protective patch backing paper, glue it on the side of the antenna near the mobile phone (adhere to this site to reduce the emissivity above 90%), and paste it on the mobile phone battery (use this Paste can reduce the emissivity of about 60%-70%, and at the same time can restore the battery capacity and extend the standby time, the characteristics of double-effect is adopted by most people. 2.When sticking on the battery, pay attention to avoid the electrode, the battery is positive and the back can be pasted. 3.Radiation protection patch can be cut according to the required size. Shearing does not affect product functionality. However, when it is pasted on the battery, it must cover more than 70% of the area of the battery. Package Included: 1/5/10PCS Phone Sticker (Phone NOT included) Note 1.Due to the hand measurement, there have size error about 1-2mm 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the photo and the actual item could be slightly different. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia