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  • Manufacturer: Knowles
  • Origchip NO: 427-GR-31459-000
  • Package: -
  • Datasheet: PDF
  • Stock: 401
  • Description: SPEAKR 57.2OHM SIDE PORT 105.7DB(Kg)

Purchase & Inquiry



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Means of Payment

For your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and wire transfer.

RFQ (Request for Quotations)

It is recommended to request for quotations to get the latest prices and inventories about the part.
Our sales will reply to your request by email within 24 hours.


1. You'll receive an order information email in your inbox. (Please remember to check the spam folder if you didn't hear from us).
2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

Shipping Cost

Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.)
The basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and country.

Shipping Method

Currently, our products are shipped through DHL, FedEx, SF, and UPS.

Delivery Time

Once the goods are shipped, estimated delivery time depends on the shipping methods you chose:

FedEx International, 5-7 business days.

The following are some common countries' logistic time.



Factory Lead Time 8 Weeks
Shape Rectangular
Packaging Tray
Published 2015
Series GR
Size / Dimension 0.240Lx0.126W 6.10mmx3.20mm
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Termination Solder Pads
Type Receiver, Balanced Armature
Max Power Dissipation 10mW
Technology Magnetic
Impedance 57.2Ohm
Frequency Range 100Hz~6.5kHz
Port Location Top
Efficiency - dBA 105.70
Efficiency - Type Sound Pressure Level (SPL)
Height 3.25mm
Height Seated (Max) 0.240 6.10mm
RoHS Status RoHS Compliant
See Relate Datesheet
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