Size: D14.1 x W36.5 x H86.5mm Weight: Approx. 32g (including batteries) Material: ABS (acrylonitrile butadiene styrene) resin Country of Origin: China Power supply: DC 3V (uses one CR2032 coin-type lithium battery) Warranty period: 1 year Set contents and accessories: Main unit, trial battery (1 CR2032 coin-type lithium battery), 1 neck strap, 1 buzzer strap, instruction manual (with warranty card) Functions: Step count (1-199,999 steps), goal achievement level (5-level display), walking distance, walking time, calories burned, fat burned, memory (7-day memory/7 days of all items, 4-week memory/4 weeks of weekly cumulative steps) Security alarm volume: 85dB (1m ahead)