Quiet baby hair clippers, low vibration design, with brass axis to reduce noiseWith safety R angle design and rounded comb tips and blades, the clipper won't harm or scratch the sensitive skin of the babyUnique IPX-7 waterproof sealing body designBarehead/Sideburn, 3/6mm and 9/12mm guide combs included2 hours charging time, with continuous operation time up to 60 minutes