The LM-835 is an “electret” microphone designed to further the use of our Sapphire pendant microphone for those who prefer a lapel-worn configuration. It connects to the Sapphire’s mic/aux input via a 3.5 mm right-angle connector. When plugged in, the Sapphire senses the LM-835 and mutes its own internal microphone diverting all pickup to the LM-835. This provides the flexibility to locate the Sapphire on a belt, a pocket or wherever convenient (without obscuring its transmitting diodes). The LM-835 draws just 3V of power from the Sapphire.