The 4 connectors are all waterproof, and can be used safely in dry cleaning or showering. The detachable shaving heads and a long enough cleaning brush make this shaver easy to clean. The 4 in 1 electric shaver kit includes 4 multi-function interchangeable shaving heads, which can instantly remove the hair on the face, arms, legs, bikini line, nose, eyebrows and other parts, making your skin smoother, so you don't need to worry about excess unsightly hairs on any part.