The Panasonic EW-DJ4B is a portable oral irrigator designed to help you maintain dental hygiene while on the go. It utilizes ultrasonic water jet technology to effectively clear away plaque and food debris from between teeth, offering four adjustable pressure levels so you can find a setting that feels comfortable for your gums. To make your routine simpler, the device includes a memory function that automatically recalls the last pressure level you used. Its compact design is built around a 150 ml water tank that is fully detachable and dishwasher safe, along with its bottom cap, making cleanup straightforward. The main unit is IPX7 water-resistant and features a rotatable nozzle, allowing you to easily direct the water flow to hard-to-reach areas of your mouth. Measuring 15.4 cm in length when assembled, it fits comfortably in your hand and can be stored in the included travel pouch for easy transport. Powered by a Li-ion battery, this irrigator reaches a full charge in about an hour, providing up to 10 minutes of total operation. Since each tank fill lasts approximately 40 seconds, you can perform a thorough cleaning session without frequent refills. The package comes with the main unit, a standard nozzle, and a charger, though you can also purchase specialized orthodontic or tongue care nozzles separately if your dental needs require them.