飛帆電子的E9900-X專业測速器正處於最後的開髮階段中，敬請期待！E9900-X對硬件進行了全新的優化設計，軟件也進行了5項革新，比市面同級別測速器精度更高，更爲靈敏！

Feifan electronics E9900-X professional speedometer is in the final development stage, please stay tuned! The E9900-X has a new optimized design of hardware and 5 innovations of software. It is more accurate and more sensitive than the same-level speedometer in the market!