The Med El Mini Battery Pack Kit is a complete original kit designed specifically for MedEl hearing aids such as the Rondo, Opus2, Opus1, and Tempo+. This mini battery pack offers a convenient and reliable power source for your hearing aids, ensuring that you have a backup supply of batteries for daily use. The kit includes everything you need to keep your hearing aids powered up and ready to use at all times. Built by the trusted brand Med El, this battery pack is a must-have accessory for anyone who relies on their hearing aids for everyday communication and mobility.