Thank you for having an interest in our availability for part number ED-21913-000, a Speaker Z=1.45K Ohm Port On End Magnetic Balanced Armature End Port 200Hz ~ 5Khz 1.45 Kohm 117Db - - 3.02Mm 6.30Mm L X 4.29Mm W Rectangular Solder Pads - - . 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.