Material: ABS fireproof plastic material    Number of gears: 20
Motor: 1300-3200 RPM                            Battery: rechargeable Li-ion battery
Battery capacity:12.8V/l800mAh(4ceIIs)/ 9.6V/18OOmAh(3cells）
In put voltage: 100-240v                           Charging voltage: 15V (4 cells) /12V(3 cells)
Chargp; time: 3.5h                                    Use time: 6 hours (medium level)
Interface type: DC header                         Product Weight: 818g
Product size: 23ox75x222mm                   Package size: 265x203x86mm