The switch starts and senses the bright screen of the human machine to reach out the liquid to avoid the automatic liquid of the machine. The double protection is only for giving you a better use experience The 450ml large capacity water tank can be used for a family of three for 60 days High-definition large screen people to both bright working state at a glance time display, indoor temperature, current gear, low fluid prompt induction of people, lack of power prompt, full power prompt The innovative water tank structure is drip proof and leak proof, which is different from the traditional wall-mounted washing mobile phone. The horizontal and flat water tank design is scientific and leak proof, so that the lavatory table is clean and tidy every day 60 days on a single charge. 2000 mah lithium battery lasts 60 days