This NII Declaration Letter, submitted to the Federal Communications Commission (FCC), pertains to the certification of a robot vacuum cleaner in the United States. The letter outlines the device's features and technical capabilities, including its DFS (Dynamic Frequency Selection) status and service capabilities across various frequency bands. The device, manufactured by GuangDong Takdir Smart Robot Co., Ltd., is identified by multiple model numbers: X51, L1 PRO, X52, X53, X5H, X5, T8, X54, X51H, RV251, AT701, AT700, AT70H, AT703, and AT704, and bears the FCC ID 2BEF9-X51.
The document details whether the device operates as a master or client device, and its ability to perform active and passive scanning. It also confirms compliance with the 15.202 requirement and includes a statement of conformity ensuring that the client software will not initiate transmissions on DFS frequencies without a master's initiation. This restriction extends to beacons and ad-hoc peer-to-peer modes, ensuring regulatory compliance.