Type：Dynamic Speaker
Weight：Approx 7.0 Grams.
Magnet：Material Nd-Fe-B
Impedance：150 ± 15% Ohm at 1000Hz. 1V
Power Rating：Normal 0.2W Maximum 0.5W
FO：510±20% Hz
S.P.L.：92±3dB/0.2Watt 0.1Meter. Average At1000,1200,1500,2000 Hz.
Frequency Range：300~20,000Hz.Average SPL-10dB.
Distortion：10% Maximum At 1000Hz.0.2W.
Abnormal Sound Test：Must be Normal Tested by 5.48 Volts. Sine wave for50~5kHz
Polarity：Diaphragm Shall Move Forward When Apply a Positive DC. Red “+” or“ Marked” Terminal
Operating Temperature：-25 °C to +65 °C
Storage Temperature：-25 °C to +65 °C
Reliable Test
After any following test leave speakers at room temperature for 1 hour, SPL shall not deviate by * 3 db from initial value
Load Test：white noise for 96 hours at 0.2 W input power.
High Temperature Test：+85±2 °C 96hours
Low Temperature Test：-40±2 °C 96hours
Humidity Test：+40±2 °C relative humidity 90~95%R.H 96hours
Vibration Test：Frequency 30 * 15 Hz, Amplitude 1.5 mm for 2 Hours per axis(x. y. z axis)
Drop Test：75 CM free falling on Concrete floor, 10 times.
Temperature Cycle test： 25 + 65 C 5 Cycles Temperature test.
Dimension
Response Fig
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