It is 2014 the new version adds +， - the two button * product uses 2 No. 7 (AAA) batteries power supply is not the product contains no * * also notice the lid on the + button without any action * lid batches color random batch delivery bucket size (without lid): high degree about 18CM. the bottle mouth diameter of about 6.5CM the size of piggy (with lid): 12*12*20.5CM weight: about 0.18KG ABS plastic single packing size: 15.5*13.5*25CM weight: about 0.28KG common a battery can be used for 10 months to 1 years， the replacement of the battery when the count will restore to zero， please use the friends attention ^_^ 12 / box 4.2KG of the product to use 2 No. seven batteries， count will be restored to zero to replace the battery， please use the attention of friends. So please on the LCD screen shows the fuzzy or battery without electricity， replace the battery in time. The product uses the power saving mode， 6-7 minutes later， the digital display will disappear automatically， in the next slot， digital will re appear. Product size: 12*12*20.5CM material: ABS plastic