Reliable Audio for K–12 Classrooms, Testing, and Everyday Learning
 
The B3E 857-35-BLK 3.5mm Headphone is a lightweight, dependable audio solution designed for today’s K–12 learning environments. Built for classroom use, online learning, digital testing, and multimedia activities, this headset delivers clear, balanced sound in a simple plug-and-play design.
 
With a universal 3.5mm audio connection, the 857-35-BLK works easily with many Chromebooks, laptops, tablets, desktop computers, and other devices with a standard headphone jack. The soft sponge ear cushions and lightweight frame help keep students comfortable during extended use, while the durable construction is made to handle daily classroom demands.
 
Specifications
Part Number: 857-35-BLK
Product Type: 3.5mm Headset
Color: Black
Connector: 3.5mm
Diameter: Ø30 mm
Impedance: 32Ω
Sensitivity: 100 dB ± 3 dB
Frequency Response: 20–20 KHz
Cord Length: 1.2 m
Cord Material: PVC
Ear Cushions: Sponge