A. About the K3: The K3 is a HiFi Headphone Amplifier & USB-C DAC that features: * Boost your computer's sound with capable decoding up to 384kHz/32 bit PCM and native DSD256 * Equipped with XMOS U30881C10 USB receiver chip+AKM AK4452 DAC+ Op-amps OPA926x2 + LPF TI OPA1612 * Modern USB Type-C input interface + Two modes of USB audio-USB 1.0 and USB 2.0 * Multiple interfaces-Dual headphone jacks(3.5mm and 2.5mm) + 3.5mm line out + Coaxial and optical digital outs * More accurate ADC volume control +Gain and bass switches You can find more info about K3 on our site at: https://www.fiio.com/K3 B. How to apply: Please apply by replying to this thread and including the following information in your reply: •-Headphone(s) / earphone(s) you possess: •-Any DAP(s) / DAC(s) / amp(s) you may possess: •-Descriptions and links to review(s) you may have posted: •-Your geographical region (e.g. the city and country you live in): •-Your native language (and any other languages you may be able to write in): C. About shipping info: •Depending on the geographical distribution of selected previewers, FiiO will ship out several K3s, one or more to Previewers in each region, e.g. USA, Europe, SE Asia, Pacific region, etc. so that shipping costs from one reviewer to the next is kept low. •FiiO will pay for shipping to the first reviewer and any customs taxes / import duties that may result from the K3 crossing countries. •Preview application period: Starting now! And accepting applications until further notice! D. Preview regulations (subject to change before the tour commences) •Reviewers should keep the K3 for at most 10 days before shipping to the next reviewer. •Reviewers should ship the K3 to the next reviewer by registered post requiring signature in the padded box provided. •Reviewers will not be held responsible for any damage to the K3 sustained during shipping or normal usage. •Reviewers should do the preview fairly and objectively, and related product photos are required. (Alternatively, video reviews are welcome) •Reviewers need not overstate the advantages of the products. •Reviewers should indicate that the review K3s are free loan units, in order to avoid any misunderstandings. •Reviewers are reminded to listen responsibly and safely to the K3, to not use it when operating machinery or driving, and not to drive headphones to excessive volume with the K3. •Reviewers should post the completed review content to this thread and the FiiO K3's review page: https://www.head-fi.org/showcase/fiio-k3-headphone-amplifier-usb-c-dac-review.23461/ •Please also provide FiiO with the links to your review, for us to come and admire your work. •Please contact FiiO in advance if you have any difficulties with the K3 in the course of your preview, so we may help you resolve it if possible. Best regards, FiiO Electronics Technology Co., Ltd.