Discovery by Califone
Stereo Headphone Comparison Chart
  HPK-1500 HPK-1520 HPK-1540 HPK-1000 HPK-1020 HPK-1040 610-44S OH-4V EH-3S EH-3SV EH-521
MSRP
$91 $79 $48.50 $77 $67 $37 $14 $45 $17 $18 $19
Plug size
USB 3.5mm & 1/4" 3.5mm & 1/4" USB 3.5mm & 1/4" 3.5mm & 1/4" 3.5mm 3.5mm 3.5mm 3.5mm 3.5mm & 1/4"
Plug type
straight straight straight straight straight straight straight straight straight straight straight
Stereo or Mono
stereo stereo stereo stereo stereo stereo stereo stereo stereo stereo stereo & mono
Adjustable headband/headstraps
yes yes yes yes yes yes yes yes yes yes yes
Recessed wiring for safety
yes yes yes yes yes yes yes yes yes yes yes
Replaceable ear cushions
- - - - - - yes yes - - -
Construction
heavy duty heavy duty heavy duty heavy duty heavy duty heavy duty medium heavy duty medium medium medium
Mac/Windows
compatible
Mac/Windows Mac/Windows Mac/Windows Mac/Windows Mac/Windows Mac/Windows Mac/Windows Mac/Windows Mac/Windows Mac/Windows Mac/Windows
Colors
gray gray gray gray gray gray gray light gray gray gray gray
Volume control
in-line in-line in-line in-line in-line in-line - on earcup - on earcup on earcup
Individual storage bag
- - - - - - - - - - -
Permanently attached cord
- - - - - - yes - - - -
Cord length/type
7.5' straight 6' straight 6' straight 7.5' straight 6' straight 6' straight 5' straight 6' straight 6' straight 6' straight 6' straight
Impedance
50 Ohm 50 Ohm 50 Ohm 50 Ohm 50 Ohm 50 Ohm 64 Ohm 300 Ohm 65 Ohm 65 Ohm 65 Ohm
Noise reducing earcups
yes yes yes yes yes yes yes yes yes yes yes
Dishwasher safe
yes - yes yes - yes - - - - -
Guaranteed for Life cord
yes yes yes - - - - - - - -
Warranty for school use
1 year 1 year 1 year 1 year 1 year 1 year 2 year 2 year 2 year 2 year 2 year

Continued

  NC500TFC 2924AVPS
& BL
3060AV
& BL
3060AVS SA-740 CA-2 3068AV 2800
BL/RD/YL
2810
BE/PA/TI
8100-HP 2985PG
MSRP
$175 $45 $17.50 $17.50 $35 $11 $19.50 $17.50 $19.50 $17.50 $86
Plug size
3.5mm & 1/4" 3.5mm & 1/4" 3.5mm 3.5mm 3.5mm & 1/4" 3.5mm 3.5mm & 1/4" 3.5mm 3.5mm 3.5mm 3.5mm & 1/4"
Plug type
straight straight straight straight straight right angle straight right angle right angle right angle right angle
Stereo or Mono
stereo stereo stereo stereo stereo stereo stereo & mono stereo stereo stereo stereo
Adjustable headband/headstraps
yes yes yes yes yes yes yes yes yes yes yes
Recessed wiring for safety
yes yes yes yes yes yes yes yes yes yes yes
Replaceable ear cushions
- yes yes yes yes - yes yes yes yes yes
Construction
heavy duty heavy duty medium medium heavy duty lightweight medium medium medium medium heavy duty
Mac/Windows
compatible
Mac/Windows Mac/Windows Mac/Windows Mac/Windows Mac/Windows Mac/Windows Mac/Windows Mac/Windows Mac/Windows Mac/Windows Mac/Windows
Colors
black/silver beige or
blueberry
beige or blueberry silver black/silver beige black blue, red or
yellow
assorted silver gray
Volume control
in-line on earcup in-line - - - on earcups - in-line in-line -
Individual storage bag
storage case - - - - yes - - - - -
Permanently attached cord
- yes yes yes yes yes yes yes yes yes yes
Cord length/type
5' straight 6' straight 8' straight 8' straight 8' straight 6' straight 10' coiled 6' straight 6' straight 4' straight 6' coiled
Impedance
80 Ohm
25 Ohm 25 Ohm 25 Ohm 20 Ohm 32 Ohm 36 Ohm 25 Ohm 25 Ohm 35 Ohm 600 Ohm
Noise reducing earcups
yes yes - - yes - yes yes yes - yes
Dishwasher safe
- - - - - - - - - - -
GuaranteedforLifecord
- - - - - - - - - - -
Warranty for school use
1 year 1 year 90 days 90 days 1 year 90 days 1 year 1 year 1 year 6 months 1 year

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