A versatile accessory for timed events, this multifunctional chess clock helps you accurately manage time to meet various game timing needs. Features: - Timing modes include BASIC, BONUS, DELAY, BYO-YOMI, and COUNT-UP; automatically switches to count-up mode after countdown - User-defined time settings up to 9:59:59; different timing parameters can be set for each player; time can be adjusted during gameplay - Automatically saves previously set parameters before shutdown - Move counting function: view or edit the number of moves up to 999 - Sound and power controls: enable or disable ble prompts; turn the clock on or off Specifications: - Main color: Black - Main material: ABS - Power source: 2 x AA batteries (not included) - Device dimensions: 140 x 85 x 54mm / 5.5 x 3.3 x 2.1in - Device weight: 152g / 5.4oz - Package dimensions: 145 x 95 x 50mm / 5.7 x 3.7 x 2.0in - Package weight: 170g / 6.0oz Packing List: 1 x Chess Clock