8ohm 40mm mini speaker 3w with waterproof function

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Speaker	mini speaker 3w
Diameter	40 x 12.2 (H)mm
Rated Power	3.0 watt  Max 4.0 watt
Nominal Impedance	8 Ω±15% At 1000 Hz test
Lowest Resonance Frequency	700Hz ± 20%
Output Sound Pressure Level	87± 3db  / 0.1 W/890 mv 10 cm Average at 800.1000.1200.1500 HZ
Effective Frequency Band	fo -5k Hz  Average SPL ±10 dB
Distortion	5% Maxium at 1000 HZ 0.1W/0.1M
Pure tone Test	Must be normal at sine wave 4.9 V  at 100HZ ~ 3KHz
Certificate	ROHS , CE, REACH,, ISO9001