No need to tap, no water leakage The design uses a 3.7V rechargeable lithium battery, which is safe and low in labor consumption. It can be used for at least two months on a single charge. Low voltage detection, display flashes to indicate charging Water shortage protection, the pump will not be damaged The installation is simple and in one step. You only need a pair of scissors to cut out the proper length of water pipe. You do n't have to worry about the flowers and plants at home Battery: 3.5v rechargeable lithium battery Applicable scenarios: balcony, desktop, living room Colour:White Material:plastic type:2 Head Package Contents: 1 x Automatic Watering Pump Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.