Thank you for having an interest in our availability for part number MB4015NSC-3, a Mic Cond Elec -46Db +-3Db Sldr Electret Condenser Analog Noise Cancelling 100Hz ~ 10Khz -46Db ¦3Db 55Db 2.2 Kohm 2V 500¦A Top None Solder Pads 4.00Mm Dia 1.70Mm Circular Bulk . item we feature that is manufactured by Knowles Acoustics. In order to receive pricing information on this particular Audio Products listing, please fill out and submit the Request for Quote (RFQ) form that is provided below. As the form is partially completed for you with details concerning this board-level electronic component, simply offer us information like your target price, desired quantity, and when you need parts by. Once you submit a request and our team receives and reviews it, you will be contacted by a dedicated account manager in 15 minutes or less to continue the procurement process.