MESSAGE UPON ORDER SIZE / POWER REQUIRED Compatibility: These Receivers are compatible with the Phonak Audeo Marvel, Paradise & Lumity Hearing Aids. in addition unitron aids. Same parent brand (Sonova) Ear side: Blue = Left Red = Right On the side of the receiver wire you should either see a print, or embossed set of numbers. These will indicate your strength and wire length. Length/Size: 0, 1, 2, 3 Power: Standard = S Medium = M Power = P SIZE 2M MOST COMMON BY FAR Includes: 1 x Receiver
