Model Number: Headset transducer DD52 Brand Name: Tungtech Key Specifications/Special Features: Impedance: 10 ± 1.0 Rated power: 1000mWSensitivity: 108 ± 3dB SPL at 1000Hz at 1mW with the standard IEC60318-3Harmonic distortion: at 120 dB SPL at 11 audiometric frequencies up to 8 kHz ≤1% THDReceiver sizes:

Diameter: 52 ± 0.5mm

Thickness: 27±0.5mm

Electrode hole: 4.0+0.5mm/-0mm