Feature: 1. Quick Preheating: After turning on for 20 seconds, the temperature‑sensitive silicone pad will gradually change from red to light transparent, reaching a suitable temperature.. 2. Natural Curl: This heated eyelash curler will help produce charmingly‑curled style, which will be naturally curly and long lasting 3. Intelligent Control: This heated eyelash curler supports 40℃ constant temperature, and it will not hurt your eyelashes. 4. Ergonomic Design: This heated eyelash curler adopts unique ergonomic design that can fit your hand in comfort, reducing hand fatigue. 5. Portable Size: This heated eyelash curler is small in size and light in weight, you can show your unparalleled beauty anywhere you want. Specification: Item Type: Heated Eyelash Curler Material: ABS Battery: Inbuilt Lithium Battery 200mAh Input: 5V 1A Output Voltage: 3.7V Operating Current: 150-350mA Temperature Range: 45-55℃±20% Product Size: Approx. 38 x 130mm / 1.50 x 5.12in (Manual Measurement, Slight Error May Exist) Use: Eyelash Perm, Making Eyelashes Curl Up Target People: Women. Package List: 1 x Heated Eyelash Curler1 x USB Cable Note: 1. The product will not change color for 10 seconds after the switch is turned on, which means that the battery is insufficient and needs to be charged in time.2. If the temperature‑sensitive silicone pad is damaged, please do not continue to use it to avoid high temperature burns;3. Please keep this product away from children, non‑professionals should not disassemble this product by themselves.