Description of SWC99BLM10-K HOW: Samson's Concert 99 Presentation combines 80 channels of high-definition audio and reliability into an all-metal, rack-mountable chassis with a stage-ready backlit display. With simple 1-touch setup, convenient monitoring, a 300' UHF operating range, and impressive transmitter battery life, this frequency-agile system offers unprecedented value to singers, business professionals, educators, and others in search of reliable wireless freedom.Furthermore, the Concert 99 comes in four configurations. The vocal handheld system includes the CH99 handheld transmitter with Samson's Q8 dynamic microphone capsule. The CB99 belt pack system can be configured with either the SE10 earset microphone, LM10 lavalier microphone, or a 1/4" instrument cable.