HamiltonBuhl® SOP-PRMB4JB Sack-O-Phones™ Listening Center is a portable classroom audio solution designed for small-group listening, literacy stations, language learning, media centers, computer labs, and shared instructional spaces. This convenient set includes four black Primo™ headphones, a 3.5mm classroom jackbox, and a Sack-O-Phones™ carry bag that doubles as a knapsack for easy transport from class to class.

Built for K–12 learning environments, the Primo™ headphones feature noise-reducing earcups, durable Dura-Cord™ cabling, comfortable leatherette ear cushions, and a standard 3.5mm TRS plug for broad classroom device compatibility. The included jackbox allows multiple students to listen to the same audio source, making this kit ideal for group lessons, reading centers, testing support, and collaborative listening activities.

🎧 Key Features

• Complete small-group listening center: Includes 4 black Primo™ headphones, 1 jackbox, and 1 portable Sack-O-Phones™ carry bag.
• Portable Sack-O-Phones™ storage: Carry bag doubles as a knapsack, making it easy to move headphones and equipment between classrooms.
• Four black Primo™ headphones: Durable school headphones designed for K–12 classrooms, labs, libraries, and testing environments.
• 3.5mm classroom jackbox included: Allows multiple students to connect to one audio source for group listening activities.
• 8-position listening support: Jackbox supports up to 8 headphone connections, giving teachers room to expand beyond the 4 included headphones.
• Individual volume controls: Jackbox lets students adjust listening levels independently for comfort and focus.
• Noise-reducing earcups: Helps block distracting ambient noise so students can focus on lessons, audiobooks, and assessments.
• Dura-Cord™ construction: Chew-resistant, kink-resistant, and durable braided cord helps withstand daily classroom use.
• Comfortable leatherette ear cushions: Over-ear cushions support extended listening and are easier to wipe clean than foam.
• Universal 3.5mm TRS compatibility: Works with most computers, laptops, tablets, listening centers, and classroom audio devices with headphone jacks.
• No microphone: Designed for listening-only classroom audio activities.
• Ideal for shared learning spaces: Great for literacy centers, small-group instruction, ESL, audiobooks, and computer-based learning.
• Classroom organization: Each headphone can be stored individually to help keep listening-center components organized.

🔌 Device Compatibility

Works with devices and audio sources that support a standard 3.5mm stereo headphone connection:

• Chromebooks and school laptops
• Desktop and computer lab workstations
• Tablets with 3.5mm ports or compatible adapters
• Classroom CD players and media players
• Listening centers and audio systems
• Interactive whiteboard audio outputs
• Library and literacy center audio stations
• Educational apps, audiobooks, and digital curriculum programs

📦 What's Included

• (4) Black HamiltonBuhl® Primo™ Headphones
• (1) 3.5mm classroom jackbox
• (1) Sack-O-Phones™ carry bag / knapsack
• Individual headphone storage bags where included by manufacturer packaging

📦 Technical Specifications

📚 Ideal For

• Small-group classroom listening centers
• Literacy stations and reading intervention
• ESL and language learning programs
• Audiobooks and guided listening activities
• Library and media center audio stations
• Computer labs and multimedia lessons
• Teacher-led group instruction
• Testing environments requiring listening-only headphones
• Shared classroom audio programs
• Portable learning carts and traveling teachers

🎓 Why Schools Choose the HamiltonBuhl® SOP-PRMB4JB Sack-O-Phones™ Listening Center

The HamiltonBuhl® SOP-PRMB4JB Sack-O-Phones™ Listening Center gives educators a simple, portable way to support group listening activities without building a listening center from separate components. With four rugged Primo™ headphones, a classroom jackbox, and a carry bag that doubles as a knapsack, teachers can quickly set up audio learning stations wherever they are needed.

Designed for daily school use, this listening center supports literacy development, language learning, multimedia instruction, and focused small-group audio activities while keeping headphones and accessories organized between lessons.

Need larger listening center bundles for classrooms, libraries, or school-wide programs? Contact Learning Headphones for education quotes, bulk pricing, and school purchasing support.