Which of the following statements is wrong?

Which of the following statements is wrong?
A . Minfen supports SFV same-frequency roaming to meet the requirements for uninterrupted mobile medical ward rounds.
B . 4050DN-HD has built-in Bluetooth and supports 3 IoT slot expansions, easily meeting the needs of IoT applications.
C . For indoor high-density guidance 4050DN-HD, the built-in small-angle antenna improves the concurrency rate of high-density users and improves deployment efficiency.

View Answer

Answer: B