 Medell recommends cleaning Samba 2 weekly for hygienic reasons. Only clean the outside of the device. Do not clean Samba 2 in or under water. Use a damp cloth to gently clean your audio processor. If necessary, use non-abrasive household soap together with a damp cloth. Prevent water from running into Samba 2 via the microphone openings or the battery compartment. Do not use aggressive cleaning agents. When not in use, Samba 2 should be kept in the case provided. To extend the battery life, you can remove the battery from Samba 2 or simply open the battery compartment when not in use. Please store the Samba 2 in a dry place and protect it from direct sunlight. If you live in a humid climate or perspire heavily, the audio processor should be placed in a drying kit instead of in the daily case when it is not worn.