This chess clock is very easy to program and easy to use.

Features:
Positive timing and presettable countdown timer, maximum 10 hours.
Bonus and delay up to 59 seconds.
Same or different time per player.
Easy to change time during game.
Settable alarm when the match is over.
Storing for the last used setting.
Compact size (dimension 5.5 * 3.7 * 1.6in), lightweight (net weight 4.77oz) and portable.
Suitable for chess/Chinese chess/go.

Specification:
Type: Digital chess clock
Material: ABS
Color: Wine red
Theory: Electronic
Display: LCD
Battery: 1 * AA Battery (not included)
Working Voltage: DC1.5V
Working Current: ≤21.0uA
N.W: 135g / 4.77oz
Dimension: 14 * 9.4 * 4.0cm / 5.5 * 3.7 * 1.6in
Package Size: 17.2 * 10.3 * 5.9cm / 9.8 * 4.1 * 2.3in
Package Weight: 272g / 9.6oz

Package List:
1 * Chess Clock
1 * Manual