Califone 2810-PA Listening First Kids Stereo Headphones, Panda Design, PC and Apple Compatible Connectivity Technology: Wired Listening First Kids Stereo and PC Headphones, Panda Design; Adjustable headband; Specifically sized for young children; Permanently attached 5.5 foot straight cord with reinforced "strain" relief connection; Volume control Right angle 3.5mm plug; Ambient noise-reducing ABS plastic earcups; Protective slotted baffles 30mm Mylar Cone Speaker with Ferrite Magnet, Impedance 25 Ohms ea side+/-15%, Freq Resp 20 - 20KHz, SPL 110 db +/- 3db, R/L output diff 3 db, Rating Input min 20mw, max 30mw, Distortion 5%, Transducers 40mm Mylar dome driver unit, Sensitivity 98dB  3dB at 1kHz Foam-filled leatherette Ear Cushions; PC and Apple compatible; Unit Weight 9.6 ounces