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| Item | Specification |
|---|---|
| Channel | Two independent output channels |
| Extended Range | If not selected, AC output restrictions smaller than maximum output 20 dB |
| Input | Pure tone, warble tone ±5%, 5Hz Sine wave frequency modulation |
| Masking | Both air conduction and bone conduction support masking |
| Computer Interface | USB data transfer interface for data management and personalized reports |
| Output | Air conduction earphone (L/R), Bone conduction earphone (L/R), Insert earphone, Insert masking |
| Transducer | TDH 39 AC earphone & B71 BC earphone (Standard); Ear~Tone 5A (Optional) |
| Monitor Function | Optional |
| Feedback Words | Built-in microphone; 50-90 dB SPL continuously adjustable |
| Test Voice Delivery | Manual or automatic / Monopulse / Multiple-pulse |
| Frequency Selection | Fast test options: 250 Hz, 750 Hz, 1500 Hz, 4k Hz, or 6k Hz |
| Display | Letter-figure display |
| Patient Signal | Responser included |
| Structure | Durable engineering plastic shell |
| Attenuator Control | Standard rotary switch (Push-button optional) |
| Power Supply | 220-230V, 50-60 Hz regulated power supply |
| Dimensions | 45cm * 30cm * 7cm |
| Net Weight | 1775g |
| Standard Accessories | TDH39 AC Earphone, B71 BC Earphone, Responser, Power cable, USB cable, CD software, Audiogram |