Signia Active is powered by a lithium-ion rechargeable battery. It is designed for full flexibility and independence with the pocket-sized Signia Active charger, which allows charging on-the-go. The hearing aids are fully protected inside the charging case, which fits easily into a pocket or purse. The charging case itself also has a lithium-ion rechargeable battery and will keep the Active devices topped up with charge when they are placed back in the case, so they are always ready to use. The charger itself can be recharged wirelessly using Qi charging technology or via a USB-C cable.