1. Compact and convenient: smaller than wireless earphones, it is equivalent to carrying two pens with you, making it easy to carry and use. 2. Ergonomic rounded design: comfortable grip, not easy to scratch the nasal cavity. 3. Minimalist design: One click opening, suitable for all ages. 4. Physical phototherapy, painless and non-invasive: Inject photons into the blood at a frequency of 100000 times per second through 650NM weak laser nasal irradiation. Absorb photons and convert internal energy to enhance the self resistance of nasal tissue. Enhance local circulation, stabilize nasal tissue through photochemical reactions, unblock internal circulation, and assist in relieving various symptoms. 5. Long battery life: It takes about 5-10 times to charge once, with a battery life of half a month, ready to use immediately. Attention: The usage time is 10 minutes each time, and it is recommended to use 2-3 times a day.