Specification: Material: ABS Size: 9 * 4.3 * 3cm Battery: 3.5v rechargeable lithium battery Tube diameter: White: inner diameter 5mm, outer diameter 7mm Black: inner diameter 2.5mm, outer diameter 3.5mm) Applicable scenarios: balcony, desktop, living room Feature: 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. (Note:USB charging (V8 type, Android USB cable) (The product does not come with a charging cable). Note: The color might be a little different from the actual product dEU to color display of different monitors. Please allow 1-3 cm error. Packing Included: 8*Drip Heads: 1pc of Host 3pcs of 4-head dripping arrow 1pc of Hook 3pcs of 3-way head 1pc of Silicone water pipe 2m 1pc of manual Or 16*Drip Heads: 1pc of Host 4pcs of 4-head dripping arrow 1pc of Hook 3pcs of 3-way head 1pc of Silicone water pipe 2m 1pc of Manual