Auto and Manual Mode: The continuous flashing automatic mode is more efficient when used on larger areas such as the back, saving time for full body hair removal. Laser hair removal device's manual mode is more suitable for sensitive areas such as the bikini line, upper lip or underarms.9 levels of energy: epilators have been upgraded to 9 levels of adjustable energy, with an energy output of up to 24J per pulse burst. When using for the first time, please start from level 1 and choose the most suitable energy level and mode according to the specific area and skin to be treated.Painless & Ice Technology: Hair removal devices with Cool Care function cool the skin while emitting pulsed light, with skin temperatures as low as 5C (41F) during use to relieve burning sensations. Use it 2-3 times a week for weeks 1-4, and 1-2 times a week for weeks 5-8. Treatment can be continued as needed after 8 weeks. Hair Removal at Home: With 999,999 flashes, the epilator lasts twice as long as the 500,000-flash devices on the market. You can share it with your whole family and friends. The product is lightweight and convenient, easy to carry and store.The hair removal device uses the new upgraded patented Ice Cold Technology, 45F* contact temperature Intense Pulsed Light () technology to reduce unwanted hair growth with minimal pain. NOTE: Intense Pulsed Light works primarily on melanin in the hair follicle - it is not effective on red, light blonde, white and gray hair, which means it is not suitable for every body part or every person, please refer to our skin tone chart before use. (Not suitable for: dark brown, black and other dark skin tones)