型号AH-83类型耳挂式喇叭直径30mm（ mm）灵敏度109+/-3dBat1000Hz（dB/mW）频响范围20~20,000Hz（Hz）阻抗300ohms+/-10%at1000Khz（ ）品牌OEMMaterial:ABSCablelength:1.2MSpeaker:30mmImpedance:300ohms+/-10%at1000KhzFrequency:20~20,000HzMagnet:FerriteVoicecoil:CopperRatedpower:0.04W=40mWMax.Power:100mWSensitivity:109+/-3dBat1000HzChannelunbalance: