Full Dynamic Range HD Speakers for Clear Bananced Sound Sound Activated Compression Omnidirectional Microphones Walker*s RAZOR -TACTI-GRIP* high performance silicone composite headband ensures a slip free, secure fit.? Full dynamic range HD speakers offer clear balanced sound.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }