Mesh Nebulizer MY 13, USB rechargeable, includes adult and child masks. - Model: Mesh Nebulizer MY 130 - Accessories: 2 masks (adult and child), 1 mouthpiece, USB cable - Operation button: Power button (green button in the center) - Mask sizes: 2 sizes, adult and child - Power supply: USB charging, 2 AA batteries Thank you for viewing. I am selling this because I have switched to a compressor type for my child's asthma. The main unit works perfectly fine. Please note that the medication cup is not included due to hygiene reasons and being a consumable item. Please check the following product for the medication cup: Medication Cup Nebulizer Inhaler Nebulizer Medication Nebulizer Ultrasonic Mediken Nebulizer Medication Bottle Medicine Cup MY-130 Mediken If you have any questions, please feel free to comment.