Handheld, portable design weighs less than 1 lb, making the VH SonicMist Ultrasonic Nebulizer great for travel. Functions at up to a 45 degree angle, ideal for patients who need to recline during treatment and operates with tap or distilled water. Automatic shut-off after 10 minutes. 3 year limited manufacturer warranty. Includes: nebulizer base, rechargeable 12-volt NiMH battery pack, 12-volt AC adapter, 12-volt DC auto adapter, child mask, adult mask, extension tube, nasal piece, two mouthpiece styles, five medication cups, one air filter, carrying tote and English/Spanish instructions.