25 Quantity Pack - goBulk Stereo Earbud (Neodymium Speaker) Ideal for Schools, Libraries, Testing, Training, Educational Use, Hospitals, Medical Offices, Dental Offices, Spa, Fitness, Music Listening, Museums and much more. Works with iPads, Chromebooks, Tablets, Laptops, PC, iMacs, Desktop Computers, iPhones, Android Phones, Smart Phones, iPods, MP3 Players, and any audio devices that use 3.5mm connection. Connector: 3.5mm Gold Plated Right Angle Plug; Cord Length: 4 Feet Earbud Speaker: Neodymium Certification: CE & RoHS; Packaging: Bulk (Individually Wrapped in Plastic Clear Bag)