SONR is a wearable radio receiver for swimmers, which allows the coach to improve their technique, during the training even when the swimmer's head is underwater. Shaped as a disc, it is located under the swimming cap to hear the voice of the coach.
Package includes:
SONR receiver x 5
Goggle clip x 5
Charging cable x 5
Ear plugs x 5
Radio transmitter x 1
Radio charger x 1
Instruction manual x 1
