Bluepack S x12 high-quality small electrodes are designed for the individual use of a single patient. The durability and number of applications you get from each electrode depend on your usage patterns. This set of 12 electrodes allows for timely replacement to ensure your Bluetens device maintains optimal functionality without compromising your safety. For best performance, the device will not operate unless all electrodes are correctly applied to your body. These electrodes come in a 3x4 configuration and should be stored in a protective pouch away from sunlight, at a temperature ideally between +5 and +27°C.