Two Control Methods – Two pairs of wireless door open alarms and two remote controls can be synchronized with each other, allowing both doors to be monitored. The unit can also be operated via the side buttons on the door alarm sensor. Multipurpose – Can be used as a magnetic contact door alarm, door chime, pool door alarm, window alarm, refrigerator door alarm, pry door alarm, or sliding door alarm. Multiple Scenarios – Helps prevent unauthorized entry, deters forced entry, helps keep children away from cabinets or in-ground pools, and assists in monitoring elderly individuals for wandering or sleepwalking. Easy Installation – Includes double-sided adhesive stickers for quick, wireless installation. Sound 1: Loud Alarm – A 120dB siren is triggered by a high-quality magnetic sensor to deter intruders. Sound 2: Soft Chime – A gentle chime alerts you when a door or window is opened. Note: Batteries (2 x AAA) are not included and must be purchased separately. Color: White Material: Plastic Package Contents: 2 x Door Alarm Sets Note: Color may vary slightly due to lighting and screen settings. Measurement tolerance is ±1–3 cm.