Used for one short trip, still in good working condition. https://www.drtechlove.com.au/product/original-xiaolang-automatic-rechargeable-usb-mini-touch-switch-water-pump-wireless-electric-dispenser-with-tds-device-from-xiaomi-youpin-white/ Description : Original XIAOMI HD-ZDCSJ01 Automatic Rechargeable USB Mini Touch Switch Water Pump Wireless Electric Dispenser with TDS Water Test [ One-touch Operation ] TDS Automatic Water Pump requires only one-touch operation to detect water quality and drink healthy water. [ Compatible With A Variety Of Water Bucket Sizes ] Compatible design, multi-purpose, easy to match a variety of bucket sizes, easy to use. It can also avoid secondary pollution caused by alternating containers [ 0.2 Second Fast Response ] Water pump does not store water and prevents bacterial growth. Every time you need to drink water, a powerful power motor can react quickly and make water out immediately. [ Real-time Water Quality Testing ] TDS Automatic Water Pump has a water quality detection function to screen three types of impurities in water in real time: soluble salts, ionic organics, heavy metal ions. Before drinking water, you can clearly understand the quality of water, drink water safely, and live a healthy life. [ Display Water Quality Data ] TDS Water Pump can clearly display real-time water quality data. Generally, the lower the TDS value, the less soluble salts such as heavy metal ions in water, and the purer and safer the water. [ Food Grade Material ] Water pump and water contact parts are strictly food grade materials, safely reinforced, and healthy. Specification : Brand XIAOMI Model HD-ZDCSJ01 Function Water Pump TDS Water Quality Test Material Foodgrade Material Color White Weight 400g Voltage 5V Applicable Water Temperature 5℃ – 45℃ Load Weight Value ≤590N Power Supply USB Charging Charging Time 3 Hours Package Includes : 1 x Water Pump 1 x USB Cable