3 Pairs of Siemens Retention Locks / Sport Locks
Will Fit Siemens / Rexton / Miracle Ear / Hansaton / Horizon / Signia Hearing Instruments and some Costco Products
If you you wonder what size you need please look for the number and letter printed on your receiver. The number indicates the wire length on your receiver while the letter indicates the size of your receiver/retention lock.
S = Small/Standard
M = Medium
P = Power/Large
The sport lock is critical in that it keeps your hearing aid in place, allowing for better hearing and reducing the risk of the hearing aid falling out.