The Electro-Voice RE90H is a professional back-electret condenser hanging microphone designed for live sound pickup of choirs, instrumental and vocal groups, and theatrical performances. Its tightly controlled cardioid polar pattern provides excellent feedback rejection while maintaining natural sound reproduction, making it ideal for capturing distant sound sources with clarity. The slim microphone transducer and integrated 25-foot braided, shielded cable allow discreet installation, while the cable maintains the microphone's horizontal position without requiring additional fishing-line support. A flexible steel wire hanger and holding nut allow precise aiming and secure positioning. Featuring built-in RF Shield technology for protection against radio frequency and GSM interference, the RE90H operates on 9–52 V DC phantom power and delivers reliable performance in professional sound reinforcement applications.