A Questionnaire About Portable DAC/Amps
Distinguished FiiO users,

In order to better know the usage scenarios and further improve our products, we are making a questionnaire about Portable DAC/Amps and would like to invite you to participate in it. Thank you so much for your time and support.

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1. What kind of portable device do you often use with your mobile phone for music listening? *
2. What do you think matters the most about HiFi devices connected to mobile phones? *
3. For products like USB dongles, what do you think is the biggest merit? (Multiple Answer) *
Required
4. For products like USB dongles, what do you think is the biggest drawback? (Multiple Answer) *
Required
5. For products like Bluetooth DAC/Amps, what do you think is the biggest merit? (Multiple Answer) *
Required
6. For products like Bluetooth DAC/Amps, what do you think is the biggest drawback? (Multiple Answer) *
Required
7. For products like portable DAC/Amps, what do you think is the biggest merit? (Multiple Answer) *
Required
8. For products like portable DAC/Amps, what do you think is the biggest drawback? (Multiple Answer) *
Required
9. What do you think has the best sound quality among products in the same price range? *
10. If you already have a USB dongle and feel like getting a new device, which one will you choose? *
11. If you already have a Bluetooth DAC/Amp and feel like getting a new device, which one will you choose? *
12. If you already have a portable DAC/Amp and feel like getting a new device, what will you choose? *
13. Are you interested in high-end DAC/Amps? (Here high-end DAC/Amps mean those exceed over 450 USD with high driven capacity, large size, heavy body and better sound quality) *
14. For the following two products at the same price, which one will you choose? *
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