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Black over-ear headset with leatherette cushions, steel-reinforced gooseneck mic, braided 5ft cable, in-line volume control

HamiltonBuhl

HamiltonBuhl ST2BK over-ear headset 40mm 3.5mm TRRS 5ft Dura-Cord accessory

SKU CH-EKZY-Y94MR MPN ST2BK

Over-ear headset with 40mm drivers, steel-reinforced gooseneck microphone and 5ft chew-resistant Dura-Cord for classroom use

  • TypeOver the Ear
  • ColorBlack
  • Driver Unit40mm
  • Frequency Response50Hz-20KHz
  • Input Impedance32 ohms
  • Sensitivity100dB ±4dB
  • Steel-reinforced gooseneck microphone resists classroom wear
  • 40mm drivers deliver 50Hz-20KHz frequency response
  • 5ft Dura-Cord braided nylon cable resists chews and knots
  • Adjustable headband with leatherette cushions fits all ages
  • 5mm TRRS plug works with Chromebooks, PCs, Macs and more

Classroom headset with steel gooseneck

The HamiltonBuhl ST2BK is an over-ear stereo headset built for daily use in K-12 environments. Its adjustable headband and leatherette cushions fit students of different ages while isolating background noise. A flexible, steel-reinforced gooseneck microphone captures speech with an omnidirectional pattern. The 5-foot Dura-Cord resists chewing, kinking and knotting.

Single-plug TRRS connection for modern ports

The 3.5 mm TRRS plug carries both audio and microphone signals through one 120-degree angled barrel. This four-pole connector matches the combined headset jack found on current Chromebooks, laptops, tablets and many gaming consoles. No separate microphone and headphone sockets are required, so cable clutter stays minimal.

Wired simplicity for shared-device carts

Because the headset draws power and signal entirely from the 3.5 mm port, it needs no batteries, charging time or wireless pairing. The braided nylon cord survives repeated coiling in storage carts and classroom bins. Leatherette pads wipe clean between users, and the lightweight frame reduces fatigue during long testing or language sessions.

Highlights

  • Steel-reinforced gooseneck microphone resists classroom wear
  • 40mm drivers deliver 50Hz-20KHz frequency response
  • 5ft Dura-Cord braided nylon cable resists chews and knots
  • Adjustable headband with leatherette cushions fits all ages
  • 5mm TRRS plug works with Chromebooks, PCs, Macs and more

Specifications

BrandHamiltonBuhl
ModelST2BK
Part NumberST2BK
TypeOver the Ear
ColorBlack
Driver Unit40mm
Frequency Response50Hz-20KHz
Input Impedance32 ohms
Sensitivity100dB ±4dB
Connector3.5mm TRRS stereo, 120° angle, thin barrel
Ear CouplingCircumaural
Cord Length5' Dura-Cord™ - chew-resistant, PVC-jacketed, braided nylon
WeightDimensions
7 x 6.25 x 3"
Weight
0.42 lb
Shipping Weight
0.7 lb
Shipping Dimensions (LxWxH)
8.4 x 6.4 x 4.5"
Wireless TypeNo
Microphone Impedance~2.2K ohm
Microphone Frequency Response50Hz-16KHz
Microphone Sensitivity-50dB ±2dB
Compatibilitycompatible with Chromebooks, PCs, Macs with 3.5 mm headphone port, iPods, iTouches, MP3 players, CD players, stereos and most gaming systems
Shipping weight0.32 kg
Package size213 × 163 × 114 mm

Questions about this item

How loud will the 100 dB sensitivity play from a typical laptop or phone?

At 100 dB sensitivity and 32 ohms impedance the headset reaches comfortable classroom volume from standard 3.5 mm ports without needing extra amplification.

What does the 3.5 mm TRRS plug with a 120° angle and thin barrel connect to?

The 3.5 mm TRRS connector carries stereo audio and microphone signals in one plug and fits Chromebooks, PCs, Macs, tablets and most gaming systems that have a single 3.5 mm headset jack.

Will the 7 by 6.25 by 3 inch ear cups and adjustable headband fit an adult as well as a student?

The circumaural leatherette cushions and adjustable headband accommodate a wide range of head sizes, while the 5 foot Dura-Cord gives enough reach for desk or floor use.

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