Size: Φ9.0±0.05mm

Unit Weight: 0.6±0.2g

Magnet Dimension: NdFeB3.5*1.2mm

Diaphragm thickness: 6μ

tone tuning paper: 400eye

Washer size: 3.5*0.3mm

Impedance: 16Ω + 15%

Resonance Frequency: 316Hz + 20%

Intelligent degree: 95 +3dB At 1000 Hz　At 0.126V

Rated Power: Rated Power Input 3mW, Max Power Input 5mW

Frequency scope: 20HZ—20KHZ At 0.126 V

Ruzzes&Rattles: 0.25V　(50HZ-3KHZ) No abnormal sound

Distortion: Less Than 5% at 1000Hz

Polarity:Positive pole, input 0.2V instantaneous DC voltage, when the voice coil moves forward, the input terminal connected to the positive pole is "+" pole

Flux Density: + 10% Guass (Surface)

Operation Test: Input power 5mW sine Wave Input 0.25v Must Be Normal

Heat Test: 60℃ + 3℃. 48 Hours

Heat Test: 60℃ + 2℃ 20%-50% 48 Hours

Humidity Test: 60℃ + 2℃ 90-95%. 24 Hours

Load Test: White Noise 2mW 96 Hours

Cold Test: -25℃ + 3℃ 45-85% 48Hours

Vibration Test: F=10~55Hz Amplitude:1.5mm Test Direction is X, Y,Z 2H/each.

Dropping Test: Effective height 1M Slope 75º+2º

Insulation Resistance: More than 1MΩ Add DC　100V+10%

Cold hot circulation: 60℃+1℃/0.5h→20℃/0.5h→-20℃/0.5h→20℃/0.5h

10cycles and then on 20℃ 3 hours

life test: Input 2mW white noise with audio signal generator, 48 hours, no bad phenomena during the test