The LG LW1521ERSM1 is not only cool...it's SMART! Cool your home from anywhere using LG ThinQ technology to control your air conditioner with your phone or use with Amazon Alexa and Hey Google to have control with the sound of your voice. This quiet unit is ideal for cooling large rooms up to 700 sq. ft. The unit has 3 cooling and fan speeds and a 24 hour timer to create a cooling schedule. 4-way air deflection lets the flow of air be directed where it's needed most whether cooling, dehumidifying or just circulating air. If there is a power outage, the auto restart feature will automatically turn your unit back on when power is restored. Other features include a remote control, easy window installation kit, slide-out (washable) filter and a check filter alert. Beat the heat while remaining cool and happy on hot summer daysCool your room with ample chilling capacity of 4396.07 WEffectively cools area of up to 700 Sq. ft., this air conditioner is perfect for bedroomsHave more control over air flow with 3 fan speedsUser friendly digital control panel and remote controlFits window openings: 29'-41"W x 19"H3 in 1 operation: Cool/Fan/Dry3 cooling and fan speeds with auto cool4-way air deflection24-hour on/off timerPower failure auto restartSlide-out, washable filterFilter check reminder lightWindow Installation kit includedSlide in/out chassis for easy installation115-Volt LCDI Plug (NEMA 5 - 15)CONTROL YOUR COOL FROM ANYWHERE - LG ThinQ® Technology lets you control your LG air conditioner from anywhere. You can start or stop cooling, change the mode, or set the temperature while on the go. It also works with Amazon Alexa and Hey Google so you can change settings with simple voice commands.LOW NOISE PERFORMANCE - LG window air conditioners operate at sound levels as low as 52dB (in low mode) eliminating unnecessary noise.MULTIPLE FAN SPEEDS - 3 cooling and fan speeds with Auto Cool allow you to customize your cooling.COOLS ROOMS UP TO 700 SQ. FT- LW1521ERSM1 is ideal for cooling large rooms (20' X 35')