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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
EXTENDED BATTERY & COMPATIBILITY: Built-in 360mAh rechargeable lithium-ion battery supporting up to 16 hours playing time with 2-3 hours charging time
Frequency characteristic: 10Hz ~ 40kHz / impedance: 20Ω / Sensitivity: 109dB / mW
UPC: 712243998623
Auto-mute feature mutes headphones when they are taken off
The new Koss Porta Pro Wireless takes the legendary sound and the iconic design of the classic Koss Porta Pro headphones - wireless
Encore ENC-313 Classroom Stereo Bulk Headphones with Leatherette Earpads - 25 Pack BÖHM EXTENDED BATTERY & COMPATIBILITY: Built-inBrand: IFENC Color: Black Features: Class set of 25 low cost stereo headphones; each kids headphone comes individually packaged in a heat sealed plastic bag 4 foot cord is suitable for most uses; 3. 5mm right angle plug will connect with all standard audio jacks and resists accidental pull out Perfect for use in school classrooms, class labs, libraries, hotels, spas, fitness centers, testing centers, and more Leatherette earpads are comfortable to