Product Name: China Supplier 28mm Speaker Full Range Speaker for Car Electronics Model NO.: JYS28F Brand: Jy Certification: ISO9001, CE, RoHS WORD nChannels: 2.1Channel Usage: Expand Volume Radiation Mode: Indirect Radiation Type Style: Mini Transducer Principle: Dynamic Earphone Cone: Polypropylene and Titanium Edge Transmission Mode: Air-conduction Category: Speaker Dimension: 28mm*5.2mm Sound Pressure Level: 98 dB (at 1.0W/0.1m with Baffle Avg0.8K,1.0K1.2 Voice Coil Imp: 8ohm Rated(Max.)Power: 1.5(3.0)W Trademark: JY Transport Package: Paper Specification: 28mm*5.2mm Origin: China HS Code: 85318090 Product Description Size28mmImpedance8Ω±15%Power1.5w~3.0wFrequency RangeFO:200~20000HZResonant Frequency400HZ±20%Sound Pressure Level96±3dBDistortion<5% Maximum (at 0.1W1000Hz)DropHeight 1.5mfunctionmini, portable,big power,east to use, suitable for all kinds of electronic products