The EMP3.5 Electret Microphone Power Adapter from Ambient Recording allows hardwired use of a lavalier mic by converting phantom 48V to 5.6V electret power, and outputs an electronically balanced signal with low impedance. This adapter is designed for use with Sennheiser evolution microphones and converts a 3.5mm TRS female connector to a standard 3-pin XLR male connector.