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ThinkPad In-Ear Headphones with mic - Overview

ThinkPad In-Ear Headphones

Features and specifications

The ThinkPad In-Ear Headphones with microphone (57Y4488) offer high-quality voice and audio performance in a comfortable, lightweight, and attractive design.

Features include:

  • Noise isolating in-ear design
  • Well-balanced high and mid range sounds
  • Discreet hands-free inline microphone for clear communications
  • Omni-direction Microphone attached on cable
  • An attached clothing clip on the cable
  • Lightweight and comfortable for long periods of use
  • 3 pairs (small, medium, large) of silicone sleeves tips for optimal fit and comfort
  • Attaches using one of the following 3.5mm jack:
    • Single combination jack that has audio output and mic input
    • Dual jacks using the 2 x 3.5 jack adapter for seperate
      • Audio output 3.5mm jack
      • Mic input 3.5mm jack
  • 2 x 3.5mm Jack Adapter included for maximum laptop and desktop compatibility
  • Protective carry pouch for storage

Technical information:

  • Connection: 1x 4 pole 3.5mm diameter
  • Cable length: 1.2-meter (3.94-feet)

Electrical specifications:

  • Headphones
    • Frequency response: 20~20 KHz is preferred
    • Sensitivity: 100dB at least
    • THD: Less than 0.5%
    • Impedance: 16~32OHM will be considered
    • Stereo speakers
    • Woofer type transducer driver for good quality base response is desired
    • Stereo speakers for sound and good base response
  • Microphone:
    • The headphones are a noise canceling microphone
    • Frequency response: 100~15 KHz
    • Sensitivity:-35~-45dBv/Pa.
    • Direction: Omni-direction
    • Signal to noise ratio shall be greater than 60dB
    • Single or array microphones shall be designed to reduce any popping, hissing or noise
    • Noise Canceling Microphone for clear call reception

     

 

Manuals  Version
 Release Date
Setup Poster and Warranty Information (1 MB)
August 2013
16 August 2013

 

Physical specifications:

  • ThinkPad In-Ear Headphones with mic (57Y4488):
    • Approximate weight: 15 g (0.03 lb) - Headphones
    • Approximate weight: 9 g (0.02 lb) - Adapter
    • Approximate length: 1.2-meter (3.94-feet) - Cable
  • ThinkPad In-Ear Headphones (57Y4488) packaged in a carton:
    • Approximate height: 51 mm (2.0 in)
    • Approximate depth: 76 mm (3.0 in)
    • Approximate width: 102 mm (4.0 in)
    • Approximate weight: 100 g (0.22 lb)

 

Warranty

1 year - Customer Replaceable Unit (CRU)

  • Announce date: 7 Jan 2010 (Worldwide)
  • Availability date: 7 Jan 2010 (Asia Pacific, Europe/Middle East/Africa)
  • Availability date: 5 Mar 2010 (Canada, Latin America, United States)

 

Hardware Requirements

Systems that have one of following:

  • Single combination (audio output and micrphone input) 3.5 jack
  • Seperate audio output and microphone input 3.5mm jacks.
    • Audio output is the green color connector
    • Microphone input is the pink color connector

The first image is the "single combination" jack, and the second image is the seperate "audio output" and "microphone input" jacks.

Thinkpad image has with single comble jack

Thinkpad image has two 3.5mm jacks:

Packaging
  • ThinkPad In-Ear Headphones
  • Setup Poster and Warranty publication
  • Dual 3.5mm jack adapter (converts the single combination 3.5mm jack to two seperate 3.5mm jacks)
  • Carrying case

 

Agency approvals
  • CE EN 55022: 2006, Class B
  • EN 55024: 1998+ A1: 2001+ A2: 2003
  • CB

 

Additional product information
Service parts - Parts listing for your product
Audio - Reference Guide - A list of other audio options.

  • Alias ID: MIGR-74505
  • Document ID: PD008845
  • Last Updated :6/17/2014
  • (c) 2014 Lenovo