Smart water-saving device

Smart water-saving device works with a sensor that protects from bacteria, which reduces hand contamination. Usage modes: continuous mode: the side sensor detects distances at 5.0 cm and allows water flow for 3 minutes. instant mode: the bottom sensor detects distances at 10.0 cm for rapid water flow, with the automatic stop feature after 20 seconds of water flow. box contents: micro USB charging cable, connector key, sensor device, five multi-purpose heads. Note: the product must be charged before use for at least 2-3 hours. the device works approximately 8 months when fully charged. two-year warranty.