Product Name: New Products 2040 8 Ohm 3W Micro Laptop Computer Speaker Model NO.: SF2040JX8-3.0H Brand: Jy Certification: ISO9001, CE, RoHS WORD nChannels: 2.1Channel Usage: Expand Volume Radiation Mode: Indirect Radiation Type Style: Wireless Transducer Principle: Dynamic Earphone Cone: Polypropylene and Titanium Edge Transmission Mode: Air-conduction Category: Speaker Dimension: 20mm*40mm Sound Pressure Level: 88dB at (Avg 0.6,0.8,1.0,1.2)kHz 1W/0.5m Voice Coil Imp: 8ohm Rated(Max.)Power: 1.5(3.0)W Trademark: JY Transport Package: Paper Specification: 20mm*40mm Origin: China HS Code: 85318090 Product Description ItemSpecificationsDimension40.0×20.0×8.0tRated Input Power1.5WMax Input Power3.0WRated Impedance8±15% Ω /2KHz/1VResonance Frequency(f0)550±20% Hz/1VSound Pressure Level88±3 dB at (AVG 0.8,1.0,1.2,1.5)KHz 0.1 W /0.1 M84±3 dB at (AVG 0.8,1.0,1.2,1.5)KHz 1 W /0.5 MFrequency Range200HZ ~ 20KHzTotal Harmonic Distortion5%MAX. at 1KHz, 0.1WFlux Density1.0TPolarityWhen a positive DC Current is applied to the voice coil terminal marked +or red ,the diaphragm shall move forwardOperation TestMust be normal at sine wave and program source1.5W. Buzz, Rattle, etc.Should not be audible at 2.53 V sine wave between(100 Hz ~ 2KHz)Weight7.6gVoice Coil Diameterφ11.75mm Magnet (NdFeB)φ11×2.0t mmAppearanceShould not exist any obstacle to be harmful to normal operation; damages, cracks, rusts and distortions, etc.Operating Temp. Range-20ºC ~ +60ºCStorage Temp. Range-30ºC ~ +70ºC