This item is a good mic core, more delicate, more discrimination and clear treble sound collection makes the microphone sound head, softer alto bass vividly feedback, and no coloration, truly a reprise of the original. Features - Color: As shown. - Material: Aluminum alloy, FR4. - Size: 0.50X0.50X0.20 cm/0.20X0.20X0.08 inch. - Directivity: Omnidirectional. - Operating voltage: 1V-6V. - Environmental regulations: RoHS2.0. - It is made of and durable materials and will not be easily damaged. - Using noise reduction technology to produce, bring you a different using experience. - The detailed audio processing makes more outstanding and charming. - With stable performance, it is a great replacement accessory for a microphone. - omnidirectional microphone replacement part, perfect choice for stage performances. Package list: 2 x condenser microphone cores