Electronic equipment 1.Electron add plastic 2. CE/ROHS 3. High quality 4. Competitive price Electronic equipmentSpeaker Dimension: φ30mmlmpedance:32Ω ±10%Sensitiviy :105dB S.P.L at 1KHzFrequency Response:20Hz~20,000HzRated power:15mWRated Power:150mWCable Length:1.2MPlug Type: φ3.5mm Stereo Peach Heart small headset