Product Name: BYXAS Smart Stopwatch WDA-108 Model: BYXAS WDA-108 Characteristics: (1).Clock: Week/Hr (12/24)/Min/Sec on Display, Calendar by Select (2).Daily Alarm: 1 set. Hourly Alarm (3).Stopwatch: Up to 23 hr 59 min 59 sec. 1/100 second Precise. Split Time Display with 2 Lap Memories Water Resistant up to 3 meters (4).Requires: 1 x LR-44 1.5V Lithium Batteries (included),Easy to carry wit 1.3m Nylon cord (included) Visible area for customized logo imprint (5).LCD screen size: 31*14mm (6).Dimensions : 60.8*75.5*22mm, weight: 48g CE / FCC / RoHS Complaint