Negative Ion Straight Hair CombFeatures:1. Rechargeable Wireless Portable; 2. Negative Ion; 3. Anti Scald Comb; 4. 3-Gears Adjustment Temperatures: 160℃/180℃/200℃; 5. Built-in 2500mAh Lithium Battery;How to use:1. Long press "ON/OFF" button 2~3s to start: 2. Short press "ON/OFF" button to adjust the temperature; 3. The blue LED will flash during the heating project and it's going to stop flashing after heating is completed. Please use it after heating is completed. 4. Long press "ON/OFF" button 2~3 to close;Tips:1. The purple LED will flash when charging and it's going to stop flashing after complete charging. Please use if after complete charging; 2. Please use it after heating is completed; 3. Please don&;t use it throughout charging; 4. When the crimson LED and blue LED flash on the identical time please fee it;Package:* Straight Hair Comb x 1; * Retail Box x 1; * Bag x 1; * Comb x 1; * Clip x 2; * Charging Cable x 1; * English User Manual x 1;