Thank you for your feedback and suggestions. 1. For IR blaster, the effective distance is 3-4m, and the direction is required to point to the equipment. The infrared emission distance of the Hub itself is about 10m. Therefore, if there is no shelter between the hub and the device, we suggest using the hub directly 2. For activity keys assigning, we have plans to modify the allocation method, which can be customized 3. It is temporarily unable to support the global coverage of keys