110v-240V Voltage, 50/60Hz,5W cordless or corded use washable,waterproof level IP*6 USB charging method LCD display, charge reminder,battery level reminder, washable reminder, travel lock reminder professional titanium blade,very sharp , not pull hair blade width 40 mm 2 hours fast and safe charging, 99 minutes working time 1000 mA lithium battery 4pcs cutting guide comb ,3/6/9/12 mm English user manual English retail box Long press the switch button for 5 seconds to lock/unlock the machine Applicable to men,women,old people,baby,children,barber shop100% Satisfaction Guarantee: This hair clipper is suitable for professional barber shops and home users. Our barber scissors will bring more fun to your life. If you are not satisfied, please contact us, we will be at your service 24 hours!. The Perfect Gift Hair Clipper: Make a great personal gift for the man in your life. Dad, husband, son and boyfriend will love this high-quality electric hair clipper, suitable for any occasion. Simple And Practical: This is a simple and practical hair clipper, stylish design, professional low-noise charging hair clipper, powerful motor, low vibration, low noise design, stable performance. Long-Lasting Power: The electric hair clipper has a built-in high-quality and safe lithium battery, which is powerful and durable. It can be rechargeable or USB rechargeable battery, which can be used for a long time. This electric hair clipper has a convenient cordless use option. Electric Professional Hair Clipper: The hair clipper is designed for smooth, fast and precise trimming of all types of hair. The electric hair clipper uses durable high-quality blades, does not hurt the scalp, has high hardness and high wear resistance.