Feature: 1. Relieve Discomfort: This ear pressure relief device offers quick and reliable relief from ear pain within a few minutes. It not only alleviates discomfort but also assists in treating ear infections. 2. Scientific Pressure Supply: Featuring a single sided hole design for one hand operation, this device provides a comfortable pressure supply to significantly alleviate the negative pressure in the ear, rendering the Eustachian tube comfortable and relieving middle ear pressure. 3. Auto Shut Off for Safety: With a user friendly one click start and release to stop air supply, this tinnitus relief device automatically stops after 20 minutes of operation to ensure safety. The additional dust cover allows for dust resistant storage. 4. Fast Charging and Durable: With a rechargeable battery and USB Type C charging cable, this Eustachian tube unclogger ensures quick and convenient charging. Its body, made from eco friendly, skin friendly, sweat resistant, and erosion resistant ABS material, ensures longevity. 5. Suitable for All Ages: Our ear pressure relief device is child friendly and safe for adults. It's an ideal solution for air travelers, swimmers, and divers. Its food grade silicone air supply nozzle guarantees safe use without sensitization. Specification: Item Type: Ear Pressure Relief Device Material: ABS, silicone Weight: Approx. 320.00g/11.29oz Product Size: Approx. 150x45mm/5.9x1.8in Battery: Built in 800mAh lithium battery (included) Operating Environment: 5 to 40℃ Relative Humidity: 35 to 70% Pressure: 31 to 41kPa Air Flow: 1.7 to 2.1LPM IP Rating: IP22. Package List: 1 x Ear Pressure Relief Device 1 x USB Cable 1 x Accessory 1 x User Manual