Origin:Mainland ChinaItem Type:Ear Care Compatible with Phonak, Unitron Widex ,Resound ForSound CIC, ITC ITE and RITE/RIC BTE hearing aids This earwax filter is waterproof and oil-resistant, which can prolong the life of your hearing device by preventing earwax or water from being trapped inside. Mini size can fit most hearing aids for RESOUND, PHONAK, UNITRON, WIDEX, ForSound, ACOSOUND, etc. (Do not fit for SIEMENS, Starkey). Features: 1.Waterproof and oil-resistant filter, can prolong the life of your hearing device by preventing earwax or water from being trapped inside. 2.Made of quality material, which ensures durability of long time use. 3.Mini size, can fit most hearing aids for RESOUND, PHONAK, UNITRON, WIDEX, ACOSOUND, etc. (Do not fit for SIEMENS, Starkey). Specification: Material: Plastic Color: As Pictures Shown Item Length: Approx. 4 cm / 1.6 inch Item Weight: Approx. 8 g / 0.3 oz Function: Earwax Guard How to use: 1.Use screenchanger to take out old filter. 2.Clean the edge of the horn on the hearing aid. 3.Use the other end to stick a new filter. 4.Install a new filter and make sure it firm. Note: 1.Please confirm the filter installed firmly, preventing it from being trapped in auditory meatus. 2.Replace the earwax filter according to the circumstances after using every month. 3.Use brush to clean the earwax filter frequently.