The Shure ADX2FD/B87A is a flagship handheld wireless transmitter that combines the high-fidelity performance of a premium condenser microphone capsule with the ultimate reliability of Axient Digital's dual-channel transmission technology. This system is engineered for mission-critical applications where audio quality and signal integrity are non-negotiable, such as major broadcast events, award shows, and headline concert tours. The integrated condenser capsule is renowned for its smooth, detailed frequency response and ability to capture the full nuance and dynamics of the human voice with exceptional clarity.

The "FD" designation indicates the transmitter's dual-channel capability, meaning it simultaneously broadcasts the audio on two independent radio frequencies—a primary and a backup—to a compatible dual-channel receiver. This creates a seamless redundancy system; if interference disrupts the primary signal, the receiver can switch to the backup transmission instantly and without any audible gap. This fail-safe technology provides an unprecedented level of wireless security for live productions. The transmitter fully integrates into the Axient Digital ecosystem, supporting remote control via ShowLink and intelligent spectrum management.

Built to the highest professional standards, the transmitter features a rugged metal body, a hardened steel grille, and a clear OLED display for monitoring. It is powered by a high-capacity rechargeable lithium-ion battery. The ADX2FD/B87A represents the pinnacle of handheld wireless technology, offering broadcast-quality audio capture backed by the most robust transmission system available, making it the choice for audio engineers and performers who cannot afford any compromise.