4 Inch Wall Fan, 300 CFM Room to Room Fan with Remote, Through Wall Ventilation Fan - Adjustable 10 Speed, Bi-Directional Airflow for Bedroom, Living Room

【Powerful Ventilation】: Delivers a maximum airflow of up to 300 CFM with a high speed of 3250 r/min; effectively improves air circulation in spaces up to 300 square feet, including bedrooms, living rooms, and laundry rooms 【Smart Control & Display】: Equipped with a multifunctional display panel for adjusting airflow direction, temperature, and speed; features cooling, heating, sleep mode, and a protection lock for customized comfort; includes a remote control for convenient operation from a distance 【Adjustable Settings】: Offers 10-speed settings and temperature control from 14°F to 212°F; bi-directional airflow allows you to control the ventilation direction to suit your needs; designed for year-round use with heating and cooling capabilities 【Universal Compatibility】: Compatible with wall thicknesses ranging from 3.74 to 7.48 inches; suitable for installation between the walls of various rooms such as bedrooms, living rooms, kitchens, garages, and laundry rooms; unit dimensions: 9.84 x 4.33 x 15.75 inches 【Quiet Operation & Low Noise】: Operates with a noise level of ≤46dB at a distance of 1 meter (3.28 ft); ensuring minimal disturbance to daily activities or sleep; constructed from durable ABS materials for long-lasting performance and reliability