為了加強我們服務質素，我們設立了 官方技術支援電郵 (support@squarewaveltd.com). 如果你遇到任何器材使用困難，音響技術上問題，系統升級疑問以及有關產品保養維修服務，最直接是使用這個官方電郵服務。我們會在最短時間內回覆。 (一般在24小時內)如果是保修問題，請連同產品序號電郵我們。謝謝。

In order to improve the quality of our services, we have setup an official email support (support@squarewaveltd.com). If you have any question regarding our distributing product, engineering background, system upgrading, repair and after sales services, please use this email to contact with us. We will respond quickly (usually within 24hrs). For warranty and after sales services, please include your product serial number.

Thank you!