MAYMOC Black 12 Month Warranty 30 Day Memory Multifunctional 3D Pedometer with Clip and Strap, Extremely Accurate Step Counter, Walking Distance Miles and Km, Calorie Counter, 30 day memory: Yes 30 days, that is 23 extra days of memory than the ordinary pedometer Measure, monitor & calculate: Complete monitoring and measurement of daily steps taken Precision: Seamless 3D advanced tri-axis sensing technology built to deliver on all surfaces (climbing, flat surface, running) 12 month warranty and black Sleek design and shape: The sleek design and elegant white color makes it a gadget beyond the ordinary