- High-density foam Flow Heads™ should be replaced every three months or if they show obvious signs of wear and tear or become dirty.
- Fully charge battery before first use.
- Recharge device monthly to extend battery life.
- Device can be recharged at any time and at any battery level.
- Only recharge using the supplied Flow A/C Wall Charger.
- Do not keep/leave/store batteries in direct sunlight or at temperatures above 40°C.
- The battery and charger work best at normal room temperature. Do not charge in direct sunlight or cold temperatures. The temperature range for charging is 0°C to 40°C.
- Never leave your device operating or charging unattended.
- It is not recommended to fully deplete the battery.
- Fully charge the battery prior to long-term storage.
- Store your device in a cool and dry place. Avoid storing your device in areas with higher temperatures. Storing your device with the included travel bag/case is important to avoid dust build up as it may reduce airflow. Ensure that the device is stored out of reach of inexperienced individuals.