The Sennheiser K6 powering module is the heart of this Sennheiser professional modular microphone system and can be powered either by its internal 'AA' size 1.5V battery (not included) or by 12 - 48V phantom power. The K6 can be combined with different condenser microphone heads to provide a wide variety of polar patterns. Matte black, anodized scratch-resistant finish.