?Quality Guarantee?We provide 12-month free replacement warranty and friendly customer service. Please feel free to contact us if you feel any problems. We will provide you 100% satisfaction solution. Instructions for use: We test items before they ship to ensure that the items are delivered to the customer without any problems, so we cannot guarantee that every item will be fully charged. So we hereby recommend that you fully charge the product before use. Quiet High Speed Motor: The premium quality motor is not only efficient but quiet as well, so you can enjoy every moment shaving. USB Charging:USB charging cordless hair trimmer, compact and lightweight for ultra-portability and travel use.Charge and plug dual-use, plug and play, charge in 8 hours, long operating time for 1 hours. Waterproof:With an IPX4 rating of water resistance, this shaver can withstand water splashes from any direction. Design: The shaver adapts to the contours of the face, neck and even the jaw, and provides a comfortable and close shave everytime.Product is only suitable for short stubble.