Description: 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 nt have to worry about the flowers and plants at home. Specification: Size: 9x4.3x3cm / 3.54x1.69x1.18inch Battery: 3.5v rechargeable lithium battery Material: ABS Applicable scenarios: balcony, desktop, living room. Package Includes: 1 Piece Drip Irrigation Pump Automatic Watering Set Note: Please allow 1-3mm measuring deviation due to manual measurement. Due to the different monitor and light effect,the actual color of the item might be slightly different from the color showed on the pictures.Thank you!