spot-client/src/spot-remote/ultrasound/ultrasoundService.js
/**
     * Calls the {@code Transmitter} instance to play a message using an
     * ultrasonic frequency.
     *
     * @private
     * @returns {void}
     */
Calls the  Transmitter instance to play a message using an
ultrasonic frequency.

@private
@returns {void}
Calls the Transmitter instance to play a message using an ultrasonic frequency . @private @returns { void }
_transmit() {
        if (this._transmitter && this._text) {
            this._transmitter.transmit(this._text);
        } else {
            this._enqueueNextTransmission();
        }
    }
_transmit ( ) { if ( this . _transmitter && this . _text ) { this . _transmitter . transmit ( this . _text ) ; } else { this . _enqueueNextTransmission ( ) ; } }
Calls the {@code Transmitter} instance to play a message using an
 ultrasonic frequency.
Calls the { @code Transmitter } instance to play a message using an ultrasonic frequency .