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Digital tally counter, For counting the field of industrial, businesses, scientific research, transportation, concert venues,sporting events, tourism..Name:Electronic tally counterModel:UIC-AST2Electronic Tally counters can be used for counting the field ofindustrial, businesses, scientific research, transportation, concert venues,sporting events, tourism, churches and more. 1BrandUNIWISE 2Type0-9999,Add/Subtract type, with Reset Button 3Shell MaterialPlastic 4ColorBlack 5Product size86x55x18mm 6Product weight42 gram 7Packing1pcs/box,200pcs/carton 8Carton42x24x20cm 9Gross weight10 kgs Operating instructions(1) To Turn on: Press On/Off/Reset button for 3 seconds, the unit will display "0".(2) To Turn off: Press On/Off/Reset button for 3 seconds when the unit display "0", the unit will be turn off.(3) To count: Press the count button, it will beep on each count(4) To switch the sound beep Off or On at any time: Turn off /on the sound switch at right side.(5) To turn on the blue backlight: Press On/Off/Reset button 2 times within 1 second. The blue backlight will automatically turn off after 5 seconds(6) LCD and Counts: The LCD will automatically turn off if there is no action in 2 hours. The same counted number will be activated on the LCD when you turn the counter on again.(7) To take out the button cell in case the counter do not work, and set the button cell back after 2 seconds.Battery information(1) Battery type:G13-A 1.5V Button cell(2) Observe polarity(+/-) during replacement(3) Do not over lighten the screwsSafetyRetain this information for future referenceThis product contains glass and may cause injury if brokenThis is not a toy hence is not suitable for children under 3 years of age