BOYA BY-WHM8 PRO Price in Pakistan The BOYA BY-WHM8 Pro is a wireless cardioid handheld mic/transmitter compatible with the RX8 Pro and SP-RX8 Pro receivers. It is designed to capture clear and intelligible speech to your camera for vlogging, mobile journalism, or content creation for the web. The BY-WHM8 Pro is comfortable for performers and presenters to hold. It features a cardioid pickup pattern that focuses on capturing the sound directly in front of the mic and rejects unwanted traffic and ambient noise. The mic operates on two AA batteries and utilizes 48 switchable frequencies for a clean sound at a range up to 328′.