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13 *18 * 4.5mm 8ohm 1W internal speakers Intelligent bracelet watches speaker
Model: MRS1318H045R8
    • 13 *18 * 4.5mm 8ohm 1W internal speakers Intelligent bracelet watches speaker
Product Details

Dimension

13×18×4.5t

Rated noise power

0.7W/in 1cc box

Maximum short term power

1.0W/in 1cc box

Rated Impedance

8±15% Ω /2.0k Hz/2.37 Vrms/in 1cc box

Resonance Frequency(f0)

500±20% Hz while testing in free air

900±20% Hz while testing in 1cc box 

900±20% Hz while testing in 1cc box

93 ± 3 dB SPL /2.37V/0.1M at 2.0K Hz, in 1cc box

Rated Frequency Range

500Hz ~10k Hz

Total Harmonic Distortion

THD ≤ 10 % @ Rated Power / 1K Hz/ 10 cm / 1cc test fixture on baffle

Polarity

When a positive DC Current is applied to the voice coil terminal marked + ,the diaphragm shall move forward

Buzz, Rattle, etc.

Must be free audible noise (buzzes and rattles)( at rated frequency range ,input level up to 2.37Vrms, while testing in 1cc box.)

Weight

2.0g

Appearance

Should not exist any obstacle to be harmful to normal operation; damages, cracks, rusts and distortions, etc.

Storage temperature

-40℃~+85℃

Operation temperature

-20℃~+70℃



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