Pre-processing strategies have led to the most significant improvements in speech perception in noise for cochlear implant recipients. These strategies: (a) enhance signals using wireless technologies, (b) isolate desired signals with beamforming, or (c) remove noise using broadband or spectral processing like automatic gain control, SNR-NR, ClearVoice, or wind noise reduction. The hearing device industry has rapidly developed new, highly effective technologies by leveraging innovations from the consumer device sector. Clinicians now have a wide array of pre-processing strategies to choose from. Understanding these technologies and their limitations is crucial for providing optimal care for cochlear implant recipients.