_x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Power-on self-test: All segments are displayed on the LCD screen, and the buzzer sounds for 2s at the same time._x000D_ After the self-test is over, the age selection interface, AGE?, is displayed, and the display age value is set (can be selected between 13-80)._x000D_ After the age selection is completed, press the ENTER key to enter the waiting interface. In this interface, INTERVAL, READY, (WORK), (REST), (TARGET), (TIME), (DISTANCE), (CALORIES), (TIME) , (DISTANCE), (CALORIES), (WATTS), (SPEED), (RPM), (HEART RATE) are displayed alternately and cyclically, and the alternating interval is about 1s, waiting for the next step._x000D_ While waiting for the interface, press the START button to start the free training mode. In this mode, the current total running time, distance, calories, power, speed, rotation speed and heart rate are recorded. LCD display: When displaying the total, it displays the timing, displays the distance, displays the calories consumed, displays the power, displays the speed value, and displays the rotational speed value._x000D_ When the STOP key is pressed, TOTAL, AVE and MAX are displayed alternately, and the corresponding value indicates its average value. Displays the heart rate reference value corresponding to the power-on set age, and displays the heart rate detected during the exercise cycle._x000D_ _x000D_ The actual shipment does not include batteries,Without heart rate function._x000D_ Batteries: 2 x AA batteries or 4 x AA batteries (more batteries will last longer)_x000D_ Colour: black_x000D_ Material: plastic_x000D_ _x000D_ Package Contents:_x000D_ 1 * Rowing Machine Counter_x000D_ 1 * Induction line_x000D_ _x000D_ Only the above package content, other products are not included._x000D_ Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm._x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_