high quality,low price, Voltage: 4.8Vli-ion battery 3.7VNo load speed: 200r/minSwitch: Forward/Reverseself lock: yesVoltage level indicator:yeswith bit mate head (quickly charge 6 bit)Gift box: 61*37.5*31cm 50pcs/cntBMC: 42*34*25CM   10pcs/cntAluminium box: 43*26.8*19CM   6pcs/cnt