Mobile Earphone with Mini USB Plug(19757W1+MM+SW), china Mobile Earphone with Mini USB Plug(19757W1+MM+SW) manufacturer, Mobile Earphone with Mini USB Plug(19757W1+MM+SW) wholesale center

1. GERNEAL SPECIFICAITION

1-1Speaker Impedance: 32+15% ohm

1-2 Sensitivity: 110+3dB at KHz/0. 178V

1-3 Frequency Response: 20-20000Hz

1-4 Rated Power: 3mW

1-5 Maximum Power: 10mW

1-6 Distortion: Not exceed 5% at 1KHz

1-7 Sensitivity: -56+2Db

1-8 Impedance: Less than 2.2K ohm

1-9 Directivity: Omni directional



2. Speaker Characteristics:

2-1 Impedance: 32ohm+15% at 1KHz 0.178V

2-2 Output S. P. L: 116+3Db at 1KHZ

2-3 Input Power: : Rated Power 3Mw/Max. Power 10mW

2-4 Frequency Response: 20-20KHz

2-5 Buzzes & Rattles: Must be normal 50-50KHz 0.31V

2-6 Distortion: Less then 5% after input rated power 1KHz



3. Microphone Characteristics:

3-1 Dimensional(mm): 6*5

3-2 Sensitivity: -56+2dB

3-3 Impedance: Less than 2.2 K

3-4 Directivity: Omnidirectional

3-5 Standard operation voltage: 3V-10V

3-6 Current consumption: Max. 0.5Ma

3-7 Sensitivity reduction: Within 3Db at 1.0V

3-8 S/N ratio: More than 60dB



4. MECHANICAL CHARACTERISTICS:

4-1 Pulling Force: Apply pulling force of 5kg for 1 minute to the plugs as shown below.

4-2 Flexing Test: Weight: 100g: Angle: 900: Flexing rate: 40 times/minute, Left & Right direction 5000 times: Temp: 25+50: C.



5. CONFIDENCE TEST:

5-1 Low Temperature Test: There should be no external appearance and action at -300: C +20: C for 8 hours

5-2 Heat Text: There should be on external appearance and action at 650: C+20: C for 8 hours

5-3 Humidity Test: There should be on external appearance and action at 500: C+20: C and relative humidity between 90% to 95% for 8 hours.

5-4 Storage temperature: -200: C to 650: C.