Yan intends to use noise reduction technology developed by MSRL (ten decibels less than the latest V-Bot and eight less than Roomba), but the two parties are still in negotiations because of the NT $ 4.5 million patent fees.
燕成祥有意採用工研院機械所開發的靜音技術（比趴趴走低 10 分貝、倫巴低 8 分貝），但由於專利金高達 450 萬元，雙方仍在溝通中。