Operate hands-free by placing your hands near the faucet, with just a touch anywhere on the spout or handle, or manually using the handle Helps keep your faucet cleaner, because washing the mess off your hands shouldn’t involve making a mess of your faucet Automatic water flow shut-off after two minutes helps conserve water Batteries last approximately 1 year if using AA batteries or 3 years if using C batteries, based on 20 minutes of usage per day Optional A/C adapter EP73954 may be ordered separately DIAMOND Seal Technology is less hassle to install and helps your faucet perform like new for life, reducing leak points and lasting twice as long as the industry standard Everything you need is together in one convenient box, including integrated InnoFlex PEX supply lines Laminar flow lends a beautiful, refined look that complements the design of the faucet Fits 1- or 3-hole 4-inch installations