iButton Tap, Display Type No Display, Mount Any Surface, No. of Employees 2,000, Time Clock, Depth 1 3/4 in, Battery Backup No, Records Calculates Pay Bi-Weekly, Semi-Monthly or Weekly., Employee Name, Actual and Rounded Work Hours, Overtime, Location, Includes (10) iButtons/Keytabs, (4) AA Batteries, Hardened Steel Padlock, Management iButton/Keytab, Steel Mounting Plate, Screws and Smartphone App Download Instructions, Height 7 1/4 in, Width 3 3/4 in