1. Output: air conduction, bone conduction, sound field (optional)
2. Qi and bone conduction masking function
3. * Qi and bone conduction masking tips
4. Manual gas and bone conduction masking function
5. Masking stimulus sounds: narrowband noise
6. Frequency range air conduction: 125~8KHZ
7. Frequency can be set freely: 125HZ, 250HZ, 500HZ, 750HZ, 1500HZ, 2000HZ, 3000HZ, 4000HZ, 6000HZ and 8000HZ
8. Frequency range bone conduction: 250~6KHZ
9. Frequency can be set freely: 250HZ, 500HZ, 750HZ, 1500HZ, 2000HZ, 3000HZ and 4000HZ, 6000HZ (optional)
10.* Test frequency automatically jumps
11. Sound intensity range air conduction: -10~120dBHL
12. Sound intensity range bone conduction: -10~70dBHL
13. *The original sound intensity of the test can be set freely
14. Output sound intensity accuracy error: < 0.5dB, frequency error<1%
15. Sound intensity step: 1dB, 2dB, 5dB, can be set

16. Test signal: pure tone, chirp, narrowband noise, pulse tone (0.5S, 1S, 2S, continuous optional)
17. Tinnitus patients: Tinnitus: 5HZ sine wave, +/-10% modulation
18. * Sound feeding method: continuous sound feeding, touch sound feeding
19. Communication: Microphone conversation, volume adjustable
20.* Operation: Support wireless touch screen control of tablet computer, support Windows system operation
21.* Printer: Standard A4 printing and portable thermal printer printing
22. Dual operation mode Power supply: power adapter AC220V 50Hz and lithium battery DC11.1V rated power: 22.5W
23. Safety standard: GB9706.1-2007
24. EMC standard: YY0505-2012
25. Audiometer standard: pure tone audiometer: GBT7341.1-2010, type 3
26. Storage: Unlimited
27. Configuration: host (accessories imported from United States), air conduction headset (Denmark original import TDH-39P), bone conduction headset (Denmark original import B71), patient transponder, power adapter, lithium battery, microphone, tablet computer, thermal printer, operating software set