Smart LED exercise rope with counter Durable design to withstand shock, wear and tear Use with or without your smartphone device Jumps are tracked by magnetic sensors Suitable for everyone - option of three lengths Charge once for 30 days usage 23 LED lights display up to four characters in mid air Skipping is considered to be more cardio intense than running or cycling alone, burning more calories and less impactful on joints and bones. Typically considered a repetitive workout, the Tangram Chrome Smart Rope adds an element of fun as you watch the count go up as you jump. Sensors at the end of the rope track when a jump has been completed, more accurately than a wrist tracker or sensor. This then corresponds to the LED lighting display and projects the number of jumps in mid-air, directly in front of you. The Chrome LED skipping rope connects to your smartphone via Bluetooth, to monitor and track performance. The skipping rope handles have been designed to not