How to use: 1. Press and hold the power button for 2 seconds to turn on. 2. Short press the power button to adjust the strength. 3. The default power-on force is 1 gear, a total of 6 gears can be cyclically selected. 4. While working, the blue light is always on. 5. The blue light flashes during the charging process, and the blue light is always on when fully charged, and cannot be turned on while charging. Specification: Item Type: Smart Snoring Device Material: ABS, stainless steel Product Size: Length: approx. 6.2 cm / 2.4 inches Width: approx. 2cm / 0.8in Height: approx. 1.2 cm / 0.5 in (manual measurement, there will be an error of 0-0.2 cm) Battery type: lithium battery (built-in) Battery capacity: 120 mAh List of packages: 1 x Smart Snoring Device 1 USB charging cable 1 manualGift Options: We provide you with 1 smart snoring device, 1 USB charging cable, 1 manual. Our snoring tool is a thoughtful gift for snorers that will not only give them a good night's sleep, but also a better relationship with those around them. PORTABLE: Our healthy sleep meter is lightweight and small in size, which makes it very convenient to carry when traveling. Carry it with you without worrying about snoring affecting others. Our anti-snoring electric device has a built-in 120mAh lithium battery, and the appropriate battery capacity is enough to meet daily needs. REUSABLE: Our Smart Throat Snore device is portable, skin friendly, reusable, comfortable to wear, not easy to fall off, and guarantees quality sleep. The snoring relief tool, which is not easy to fall off, allows you to sleep comfortably and flexibly, which is economical and practical. Quiet: Our smart snorer is comfortable and convenient to wear, sleep quietly, ensure deep sleep, and get through each day with peace of mind. Having a good night's sleep determines the fullness of the next day, use our anti-snoring electric device to give you a good night's sleep. SENSOR: Our Smart Throat Snore device automatically and accurately detects snoring through sensors, massages the hypoglossal nerve and subglossal muscle group through vibration pulses of different frequencies, promotes muscle tightening, adjusts breathing rhythm and makes smoother breathing.Country of Origin: China. : B0B91R8D7S. Manufacturer: ANGGREK. Package Dimensions: 4.72 x 3.15 x 1.18 inches; 3.49 Ounces.