This through-the-wall air conditioner provides a complete, energy-efficient year-round temperature control solution for medium to large rooms up to 450 square feet It combines strong cooling, reliable heating, and effective dehumidification to maintain ideal indoor comfort in any season. Equipped with Wi-Fi connectivity and quiet operation, it allows convenient, flexible control via smartphone, remote, or control panel. Professionally designed for through-the-wall installation, it ensures stable ventilation and high efficiency for bedrooms, living rooms, and offices.