The Jukes radio transmitter has an open water range of 1km and in-building range of 150m. For crystal clear audio stick to within 75% of the distance limits. There are 7 channels available for the coach to broadcast to up to 20 swimmers through these colour combinations:
Blue and Orange
Red and Orange
Red and Blue
Red, Blue and Orange
The transmitters and wired microphone are not waterproof, please don't fall out the boat on open water swims.
You can play music to the swimmers through a male ‘Line in’ aux port.