Electric engineering vehicles excavatorFeatures:~~ Specifications: 28.5 * 17 * 10.5CM (11.2*6.7*4.1 inch)~~ Material:ABS non-toxic~~ Weight: about 500 grams~~ Age Range:3-10 YearsNote: three batteries (buyer-owned)How it work: First: Caster clawed base sub round protective cover， turn the power switch， it will start up， but also accompanied by beautiful music， the wheels will sparkleThen: After walking for some time， it will stop， and then imitate excavators， making digging action， action is completed， it will continue to walk forwardFinally: It is also equipped with a universal device， when faced with an obstacle， it will automatically turn around or back and adjust the direction and continue walking. Baby must love it!Packaging include:1* Electric excavator