Comprehensive workout metrics - An LCD display monitors time, paddle frequency, distance, and calories burned to support effective training. Seamless wireless connectivity - Compatible with resistance rowing machines that have an SM# connector; wireless setup provides uninterrupted workouts. Multiple functionalities - Includes calorie tracking and total count to keep you focused on fitness goals and give clear performance insights. Lightweight and resilient construction - Weighs about 288g and is made from plastic material, built to endure regular exercise without sacrificing functionality. Use scenarios - At home: integrate with your rowing routine to track progress during steady-state sessions and monitor key metrics. - Intervals: use during interval training to optimize effort with real-time calorie and distance feedback on compatible machines. - On the go: the lightweight design enables easy transport between gym setups or travel between machines with SM# connectors.