Digital Speed Cubes Stacking Competition Timer Clock

Features: -Perfect for speed cube and cup stack racing. -Self-practice, test speed, convenient and precision, accurate to 0.001s. -It need to put two sections of 7 battery to use. -Able to connect computers and external display screen. -With voice, applause and other audio functions. Description: Item Type: Timer Material: ABS Color: Green+Black Power: 2 AAA battery(not included) Size: (L)X(W)X(H) 28X6X2.5cm /11.02''X2.36''X0.98"(appr.) Package Included: 1 X Pcs Timer Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.