Value pack: 30 hearing aid filters in a hard case with a changing tool for each filter included. With instructions (English language not guaranteed) for changing the filters 2-in-1 tool: Hearing aid filters in a practical storage disc. The filters are already inserted on the replacement tool and remain hygienically protected Hearing accessories: Earwax detector for hearing aids with internal or external speakers 100% compatible with Oticon More and Oticon OPN Earwax protection: The replacement filters protect your hearing aids from earwax penetration and help to optimize the acoustics of your device. Contents: 30 ProWax MiniFit filters - Contains 30 earwax filters. Filter replacement pen included. Oticon ProWax MiniFit earwax filter replacements for hearing aids