?Warm Warranty? The treatment is safe, as the laser only works on the lesion and the patient only feels warmth during the treatment without the risk of burning the tissue.If you are not satisfied with the red infrared light therapy device within 60 days, please return it and get a full refund. Product includes 1 Nail Fungus Treatment Device, 1 US Plug with Charging Cable and 1 User Manual. We provide 12 months warranty, please feel free to contact us,and we will reply within 24 hours. ?Without Side Effects? The nail fungus treatment for fingernails is suitable for patients with liver and kidney insufficiency, weak immune system and those who cannot take oral medication or undergo surgery. Patients with heart disease, hypertension, diabetes and pain-sensitive people such as the elderly, children and pregnant women. ?7-minute Treatment? When ready to use, simply open the device and clamp onto your finger toe. When the lights automatically go out the 7-minute treatment is done, and you can take down the nail fungus laser device. Please use this device on a daily basis, and at least once a day. There are other things you can do during the treatment. ?Significant Therapeutic Effect? Nail fungus treatment for toenail is a highly effective and safe nail fungus treatment technology with precise treatment effect, short course of treatment. Nail problems do not heal on their own. Nail mycosis can cause cloudy, thick, uneven surface of nails, separation of deck from nail bed, nail discoloration, and falling off, our fungus nail treatment device will help you solve these problems. Healing nail problems requires determination and patience. ?Nail Fungus Laser Technology? Use the 470nm blue light 905nm infrared cold laser fungal nail treatment for toenails fingernails, to effectively combat fungal microbial infections of your nails! 905nm infrared light can cause thermal damage to the fungus, producing a therapeutic effect. 470nm blue light can help activate the skin's immune system, helping to repair the skin ce-lls. The 905nm light is infrared light, it is invisible.