It features a separable construction; the top of the concealer can be separated from the base. This allows you to affix the base to clothing, yet allows the top part to be removed independently. With the concealer comes a unique, detachable space bracket that secures distance to the clothing. This prevents clothing from touching the concealer; thus preventing the creation of noise. The space bracket clicks in and out of the top of the concealer.The DMM0021 Concealer for Lavalier 4060 Series replaces both the DMM0012 Concealer for 4060, Concealer for Lavalier 4060 and the DMM0009 Concealer for Lavalier 4071.