PROFESSIONAL: Metal case for ultimate strength and stability. Highly efficient and durable Lithium-Ion battery without memory effect. 70 minutes run time and 120 minutes charging time. › CHROME BLADE: High precision chrome plated blades. Convenient thumb lever adjusts the taper and texture without changing the blades 0.8 – 2.5 mm. › PREMIUM GUIDES: Includes 3 premium combs with secure fi t technology which ensures combs’ lasting fi t to blade.