Using your Bloomy Lotus Wearable Negative Ion Essential Oil Diffuser Necklace is a breeze. First, take the specially designed disc out of the package. Add a few drops of your favorite essential oil to the disc. Then, place the disc back into the ion - emitting wearable. You can wear it around your neck using the included strap. When it's time to charge, simply use the USB cable provided. It will charge up quickly, and once fully charged, you'll get about 10 hours of use. Remember to keep the device away from water as it's not waterproof. Don't expose it to extreme temperatures. To maintain it, clean the essential oil disc regularly with a soft, dry cloth. If you're not using the device for a long time, store it in the provided bag to keep it safe.