Sennheiser EW 135P G4-D Wireless Camera Handheld Set, 780-822MHzA broadcast quality sound solution. Providing the highest flexibility for your outdoor shoots and field recording applications. A robust wireless microphone system that offers excellent sound quality, simple mounting and ease of use. Reliability and performance Eventually, youll most likely get to a point in your filmmaking career when you realize that audio quality is just as important as video quality when it comes to creating compelling content.