The ornamental design for a remotecontrol for hearingaids, as shown and described.
1. Remote control for hearing aids
1.1 : Perspective
1.2 : Front
1.3 : Back
1.4 : Left
1.5 : Right
1.6 : Top
1.7 : Bottom
The broken lines in the figures are for the purposes of illustrating unclaimed portions of the remote control for hearing aids, and form no part of the claimed design.