Main FeaturesPractical LEAP PQ9905 Quarz Analog Chess ClockAvailable for Chinese Chess, International Chess and I-GOPress the left button, left timer stop timing and right timer begin timing, vice versaPress two buttons simultaneous to half, both timers are in stop state, insert the clip to make sure the stop state Mode of electronic components + ABS shell, environmentally friendly and durablePowered by 1 x AA battery ( not included )Note: It is just a simple chess clock, no other special functions Model: LEAP PQ9905 Type: Entertainment,Novelty,Practical For: All Functions: Multi-functions Material: ABS,Electronic Components Occasion: Home,Office,Outdoor,School Color: Black Package weight: 0.502 kg Product size (L x W x H): 19.50 x 5.00 x 11.50 cm / 7.68 x 1.97 x 4.53 inches Package size (L x W x H): 22.00 x 13.00 x 6.00 cm / 8.66 x 5.12 x 2.36 inches Package Contents: 1 x LEAP PQ9905 Digital Chess Clock Wei Chi Count Up Down Timer, 2 x Clip, 1 x Bilingual User Manual in English and Chinese