Indestructible EVA Foam Headsets " Twist-'Em, Turn-'Em, Kids Can't Break 'Em.HamiltonBuhl® is now producing Flex-Phones™ Headsets – the same great construction as the best-selling Flex-Phones headphones – now with a steel-reinforced, gooseneck microphone, volume control and USB connector, ideal for today's technologies.HamiltonBuhl® Flex-Phones™ headsets are the safe, non-toxic, BPA-free, soft, flexible, nearly indestructible units. The gooseneck microphone can be easily positioned for optimal communication.With extremely clear stereo sound quality and comfortable leatherette ear cushions, Flex-Phone headsets are ideal for remote, at-home use or in school. Flex-Phones™ headsets come with a snap-on extension band for smaller children – just snap on the extension band for a more perfect fit. Flex-Phones™ headsets also feature the exclusive Dura-Cord™ – the chew-, kink- and knot-resistant, PVC-jacketed, braided cord.Optional Accessories (Not Included):• HygenX25 - Disposable sanitary ear cushions covers (box of 50 pairs).Kids Blue Flex-Phone USB Headset with Gooseneck Microphone Specifications:• Color: Blue• Plug: USB 2.0• Output Wattage: 20-30mw• Headband: Padded EVA Foam• Ear Cushions: Leatherette• Microphone: Omnidirectional, Gooseneck with Noise Reduction• Sensitivity: -42±3 dB• Frequency Response: 100~10KHz• Impedance: 2.2k?Thickness: 3.0mmCord: 4' Dura-Cord™ - chew-, knot- and kink- resistant, PVC-jacketed, braided nylonStorage Bag: YesHeadsetSpeaker Drivers: 30mmFrequency Response: 20~20KHzSensitivity: 97dB±4dBImpedance: 32?Warranty: 1 Year