Simple steps to get started Step 1. Plug your heated eye mask to a 5V / 1A or 2A USB port to power up the eye mask. Step 2. Press F button to choose desired temperature. Step 3. Press Min button to set the desired length of time to heat. Step 4. If you set it correctly, the indicators of controller stay lit. Step 5. Unplug the power cord to turn off your heated eye mask. Package includes: 1 * eye mask 1 * heating belt 1 * remote control for temperature adjustment 1 * spray bottle 1 * ice pack 1 * Lavender sachet 1 * English manual USB Steam Eye Mask to Relieve Eye Stress, Warm Therapeutic Treatment for Dry Eye, Blepharitis, Styes This steam eye mask is the perfect gift for mother, girlfriend and female friends. Feature HIGH QUALITY MATERIAL Made of high-quality mulberry silk on both sides. soft skin-friendly, breathable and absorbent and environmental. TEMPERATURE AND TIMING ADJUSTABLE Effectively relax your eyes with 4 heating modes (35 C/ 95 F, 40 C/ 104 F, 45 C/ 113 F, 50 C/ 122 F) , great for puffy / dry / tired eyes and dark circles. With a timer that automatically turns off in 10 to 30 minutes. Choose your favorite time and temperature, then enjoy sleeping and relaxing in a peaceful mood, relieving eye fatigue after a sense of tension in the day.