G1/2 connection size, complete accessories, ready to install when you receive it, basin mixer tap accessories are complete, you can install it as soon as you receive it, it is convenient and fast, and you can enjoy a new home decoration experience The bubbler's multi-layer filtration effectively removes impurities and prevents splashing. Built-in silent switch device effectively reduces water flow noise Band automatic sensor tap allows you to wash your hands without touching it, avoid cross-contamination with bacteria and gain hygiene. Powered by AA batteries (batteries not included), it can be used when there is no socket near the sink or when there is a power outage, but it requires maintenance and needs to be replaced when the battery is exhausted. The distance set by sensor basin mixer tap is 15 cm. Place your hand at this distance and the water will flow automatically. Remove your hand and the water will stop.