Sentry EarphoneNew Sentry Studio Style Stereo EarphonesIt has volume controlModel: H0990FEATURES:Padded HeadbandAdjustable fitSoft Ear pads50 MM DriversBass VentsAcoustic ChambersSPECIFICATION:Impedance 32 ohmsSensitivity 120dB+/-3dBFrequency 20Hz-20KHzCord Length 4ft (1.2M)Plug Type 3.5mmNOTE: ALL SALES IN THE STATE OF FLORIDA WILL BE SUBJECTED TO PAY 6% SALES TAX