Key Features • High-hardness & Self-Sharp Blade - The blade adopts a high rigidity cutting blade, which can maintain long-term sharpness, and the blade speed is extremely fast, and there is no carding phenomenon, which is suitable for dry/wet hairstyle. • Long-Lasting Motor Runs Quitely - The hair clippers with powerful motor can provides accurate and consistent performance saving lots of hair cutting expense for you, and enjoying salon haircut experience at home. • 2000mAh Lithium Battery - It has long-lasting power and can be used continuously for 240-300 minutes after being fully charged For 4-5 hours . It also has Over charge and Over discharge protection. The Adapter has an Input of 100-240V.