... Step, Distance and Calculate Calories Burned Accurately 2) Time Display with 12/24hour format option 3) Exercise Timer 4) 7 Days ... manufacturer for 13 years .2. Factory audit by 3rd party with management standard: ISO9001: 2008 .3. Best development team in china ... quality control ensure super quality product.5. Two factory located with ID, R&D, SMT, Mould, Injection, Metal, Bonding, Coating, Packing ...