机种编号S709-12VR驱动单元2× 15mm喇叭频率响应20-2，000Hz阻抗32Ω±3Ω/VR500-1000Ω灵敏度102dB±3dB最大输入功率5mW输入线路 3.5mm立体声插针导线长度1200mm±10%导线颜色/可选择黑色耳壳颜色/可选配黑色包装/可选择包装PE袋/吸塑MODELNoS709-12VRDriverunit2× 15mmspeakerFrequencyresponse20-2，000HzImpedance32±3ohm/VR500-1000ΩSensitivity102dB±3dB（at1khz，0.25V）Maxinputpower5mWInputconnection 3.5mmstereoplugCordlength1200mm±10%CordColor/coloroptionblackEarlapColor/coloroptionblackPacking/PackingoptionPEbag/blistercard