TECO Multi-Split Wired Wall Controller with built-in WiFi (Optional Extra) The TMSWWCAG TECO Wired Wall Controller providing intuitive control with a sleek, easy-to-use interface. Featuring built-in WiFi, it allows seamless remote access via a smartphone or tablet for added convenience. For even greater flexibility, customers can order an optional extra Wired Wall Controller suitable for the High Wall Mounted Indoor Units , enabling multiple control points throughout the home or business for enhanced accessibility and comfort.