This smart watering machine can intelligently set the interval time of watering from 1-9 days, and watering time from 1-99s. After setting it will start watering automatically and conduct next automatic watering at the setting time. The Watering Timer has a built-in 2000mAh li-ion battery which can sustain at least 2 months after fully . It is very safe and low energy consumption. It is very easy to install and operate; an accurate connection between tubes without any leaking is accessible. It can be a good helper in for your plants when your go out for travel. The automatic watering system is a potted plant water replenishment artifact, designed for potted plant at balconies, homes, offices or small greenhouses etc. Type: Intelligent Watering Machine Model: 8 Head Dripping Type Power: 4W Voltage: 3.7V Operating temperature: 0 Celsius-50 Celsius Hose Length: about Colour: white Material: plastic Size: host 3.8x5.7x8.2cm Package Contents: 1 * Watering Machine 8 * Dripping heads 1 * 3-way head 2 * 4-way heads 1 * Metal Hook 1 * water hose Only the above package content, other products are not included. Note: Light 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.