Battery-powered (2 x AAA batteries, 1.5 V, alkaline batteries). Batteries not included. Robust, shock-resistant construction. Manual watering is possible. Easy to use, waterproof with a lid. Can be attached to a 19 mm tap or faucet. Once programmed, it repeats cycles until new settings are applied. Frequency options: 1 min, 3 min, 5 min, 10 min, 15 min, 20 min, 30 min, 60 min, 90 min, 120 min. Run time options: 5 seconds, 10 seconds, 20 seconds, 30 seconds, 40 seconds, 1 minute, 2 minutes, 5 minutes, 10 minutes, 15 minutes. 1. 【Easy to Install】: No tools required, simply insert the timer into the faucet and connect the hose connector to the snap-fit! 2. 【Simple Operation】: No complicated numbers, symbols, operations, or settings. Simply turn the 'WIE LANG' (How Long) and 'HIE FREIG' (How Often) dials to your desired duration and frequency. It runs automatically according to your settings. 3. 【Adjustable Run Time】: From a minimum of 1 minute to a maximum of 120 minutes, with intervals ranging from at least 1 hour to a maximum of 72 hours. 4. 【Reliable Quality】: Withstands water pressure up to 46.89 psi without risk of breakage or rupture. 5. 【Wide Range of Applications】: Watering timers are highly practical and can be used in your home garden, rooftop garden, lawn, balcony, terrace, greenhouse plants, agriculture, etc.