Aan electronic device used by the coxswain to amplify his or her voice and broadcast it through speakers located throughout the shell.
A small electronic device which aids the coxswain by amplifying his voice, and giving him a readout of various information.
A microphone system used by the cox – it's difficult to yell loud enough to be heard in the opposite end of a eight that's heading into the wind. The cox box plugs into a speaker system permanently mounted in the boat.
A small electronic device that amplifies the coxswain's voice and also gives a readout of information, such as the current stroke rating.
A battery-operated electronic device used by the coxswain, with a stroke rate monitor, elapsed time readout, and voice amplifier attached to a microphone on a headband worn by the coxswain.
A Cox box is an electronic device used in competitive rowing that combines a digital stroke rate monitor and elapsed time readout with a voice amplifier. Although the term "Cox box" is commonly used as a generic descriptor of this type of device, the name Cox-Box is a registered trademark of Nielsen Kellerman, just one of the several companies that manufacture these units.