PATENT faltbare Lautsprecher Computerlautsprecher mini spea

PATENT foldable speaker,computer speaker,mini speakerPRODUCT INFORMATION1. The surface is made of PP or cardbaord material which is none poisonous and recyclable.2. Can be folded and convenient to use .3. Non-power use, no battery use, save the energy and protect the environment.APPLICABLE SCOPEcomputer, some part of mobile phone and any device with 3.5 audio frequency plugVOLUME AND ACOUSTIC FIDELITY1. Adjust the volume through the terminal you connect.2. Since each device has different output power, the acoustic fidelity will be a little different.3. The acoustic fidelity and volume from IPOD is quite good..Speaker Technical ParameteDescriptionSpecificationTest ConditionDiameter57mmDimension8±15%ohmAt1000Hz20Rated Impedance1WPink NoiseMax. Power Input2WResonant Freq.400±20%HzS.P.L88±3dBBuzz&Rattle2.84vSine wave, 0.3mEffective Freq. RangeFo 8000HzMagnetφ40*φ19*8Total Height20mm