Product Name: 2307 23mm 1.0W Automotive Tester Manufacture Sound Speaker Model NO.: SQ2307 Brand: Jy Certification: ISO9001, CE 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: 23mm*7.0h Snr: 90dB Voice Coil Imp: 8ohm Rated(Max.)Power: 0.5(1.0)W Trademark: JY Transport Package: Paper Specification: 28mm*5.0mm Origin: China HS Code: 85318090 Product Description ated Power(W)0.5Max Input Power(W)1.0Rated Impedance(Ω)8±20% at 1KHzResonance Frequency(Hz)800±20%SPL at 0.1m 0.1W(dB)≥85@1500Hz,sine waveRated Freq. Range(Hz)500~4000Buzzes & RattlesShould not be audible at 2V sine wave between 300~6000HzOperating Temperature(ºC)-20~+60Storage Temperature(ºC)-30~+70Weight(g)3.0RoHSYes