HamiltonBuhl® Primo™ Stereo Headphones — Red, 3.5 mm Stereo Plug, Classroom-Ready

Primo™ headphones deliver clear, reliable audio for K–12 learning with a rugged, school-tough build. Noise-reducing earcups help students focus, while a durable 5 ft Dura-Cord™ and 3.5 mm stereo (TRS) plug provide easy compatibility with classroom devices.

Key Features

• Built for schools: ABS plastic construction with Dura-Cord™ (chew-, kink-, knot-resistant, PVC-sleeved, braided).
• Comfortable & easy-clean: on-ear design with leatherette cushions for shared classroom use.
• Clear, focused listening: noise-reducing earcups help block ambient distractions.
• Universal audio: 3.5 mm stereo plug (TRS)—works with most carts, PCs, Macs, and tablets.
• Hygienic storage: includes a heavy-duty, write-on, reclosable bag (helps prevent the spread of lice).
• 1-year warranty from HamiltonBuhl; Prop 65 compliant.

Compatibility at a Glance

Specifications

• Design: Personal, on-ear; color: Red
• Cushions: Leatherette (wipe-clean)
• Plug: 3.5 mm stereo, jacketed
• Cable: 5' Dura-Cord™ (chew-resistant, PVC-sleeved, braided nylon)
• Drivers: 30 mm
• Frequency response: 50 Hz – 20 kHz
• Impedance: 32 Ω
• Sensitivity: 105 dB ± 4 dB
• Included: heavy-duty, write-on, reclosable storage bag (helps prevent the spread of lice)
• Compliance: Prop 65
• Warranty: 1 year
• Model / SKU: PRM100R

Ideal For

• Classrooms, testing labs, libraries, language & literacy apps
• Chromebook carts and shared learning spaces

Related Accessories

• Storage cases & racks
• Device-safe wipes
• Audio adapters (USB audio dongle, extenders)

Minimum Order (3)

Buying for a school or district? We accept POs and offer volume pricing. Request a quote.