1.Can calibrate multiple types of earphone at the same time 2.Can be use as mobile devices,and also desktop 3.Easy to handle

Input : pure tone, warble tone ±5%, 5Hz Sine wave frequency modulation.

Masking : narrow-band noise, white noise.

Output : Air conduction earphone(L/R), Bone conduction earphone(L/R), Insert earphone, Insert masking.

Transducer : TDH 39 earphone (standard configuration)

                    Ear~Tone 5A Insert earphone (Optional)

                    B71 bone conduction earphone (Optional)

Feedback words : Built-in feedback words microphone. 0-110 dB SPL can be continuous adjust in panel.

Send test voice: Manual or automatic

               monopulse

             multiple-pulse

Frequency selection :If you need to fast test, can select 125Hz,250 Hz,750 Hz,1500 Hz or 8k Hz.

Display : letter-figure

Patient signal: responser

Structure : Engineering plastic shell

Attenuator control : standard rotary switch (can choose Push-button switch)

Frequency and maximum output intensity :

Frequency	AC dB HL	AC dB HL	BC dB HL
Hz	TDH39	Ear-Tone 5A	B71
125	90	90
250	100	105	45
500	120	110	60
750	120	115	60
1000	120	120	70
1500	120	120	70
2000	120	120	70
3000	120	120	70
4000	120	115	60
6000	120	100	50
8000	110	95	50

                                              

                   

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