Waterproof Hair Clipper: Works submerged up to 30cm, easy cleaning. Whisper quiet, low-vibe: calm kids, no waking sleepers. Safe for babies: no hair clamp or skin irritation. Rapid 3-hr charge for 60-min use. Combs for 4 lengths: 1/8", 6mm, 9mm, 12mm. Perfect, easy haircuts.