Your search for audioengine wireless adapter returned the following:

Wireless audio adapter kit

IN STOCK

9 people say 

• includes Sender and Receiver with range of up to 100 feet
• transmits interference-free, CD-quality audio signals
• plays all music formats from any media player and supports audio sample rates up to 48kHz/16-bit
  

Add-on receiver for Audioengine D2 wireless DAC system

IN STOCK

• add-on receiver for Audioengine D2 wireless DAC system
• wireless transmission of music with data rates up to 24-bit/96kHz
• optical digital and RCA audio output

Add-on receiver for W3 wireless audio system

LOW STOCK

• add-on receiver with range of up to 100 feet
• receives interference-free, CD-quality audio signals
• connects to any sound system or powered speakers with minijack or RCA audio inputs

Premium wireless adapter for iPod®

IN STOCK

3 people say 

• compatible with docking iPods, including 160GB iPod classic, 5th generation iPod nano, and 3rd generation iPod touch
• transmits CD-quality audio signals
• range: 30 feet

Wireless digital-to-analog converter

IN STOCK

5 people say 

• Burr-Brown PCM1792A 24-bit/192kHz digital-to-analog converter for precise, high-fidelity stereo sound
• wireless transmission of music with data rates up to 24-bit/96kHz
• optical digital and USB (Type B) audio inputs; optical digital and RCA audio output