Phonak / Unitron Retention locks for SDS 4.0 receiver wires - bag of 10

What is it?

• Bag of 10 retention locks for SDS 4.0 receiver wires for Phonak Audeo Marvel or Paradise hearing aids
• These flexible pieces of plastic attach to the end of the receiver wire via a looped end.  
• These are used to provide a more stable positioning of the receiver wire in the ear canal.
• Available for standard, (S), medium, (M) or power, (P) receiver wires. On the red (for right) or blue (for left) end of the receiver wire, there will be a number and letter printed. For the purposes of choosing the retention lock, ignore the number. If you have an 'S', you will need to choose Standard. If you have an 'M' you will need the Medium and 'P' will be the Power. 

N.B.: In order to select the correct retention locks, you will need to confirm which power level of wire you have fitted. Our friendly team of audiologists is available to help you with any of your queries so please contact them on help@hearingdirect.com if you need help choosing the right retention lock.