BLF-17 is both an office private booth and a privacy booth for home. It can be used for meetings of 6 people or for personal musical instrument practice. This is a very unique movable silence booth. The original intention of the design is for professional musical instrument users. It is a relatively cheap professional large-scale soundproof compartment. Compared with the 4-layer wall luxury model BLF-16, its price will be lower. Through precise design of the three wall structures, we have achieved the best sound insulation effect. When using it, we recommend that you turn on its exhaust system for 1 minute before using it.