SUPERIOR SOUND QUALITY - Experience crystal-clear audio with a wide frequency response of 50 Hz - 18 kHz, ensuring every nuance of your voice is captured with exceptional clarity and fidelity. EXTENDED WIRELESS RANGE - Enjoy reliable performance up to 300 feet (92m) under typical conditions, providing freedom of movement without compromising audio integrity for dynamic presentations. LONG-LASTING BATTERY LIFE - Benefit from approximately 6 hours of continuous operation with two AA alkaline or rechargeable batteries, ideal for extended events and performances. ROBUST DURABILITY - The DHXR receiver features a sturdy metal chassis (EIA STANDARD 1/2 U), ensuring long-term reliability and protection for professional use in various environments.