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      Description

      Hi-Resolution Audio Certified for frequency response up to 40kHz, fully reproducing the audio and also giving you natural and life-like listening experience. And also apply graphene speaker is composed of special patent technology, which shows obvious advantages in either objective parameters or subjective hearing experience. The graphene speaker has strong but not dull bass, can present deeper drumbeat and stronger sense of layer with a clearer and highlighted treble.

      Advanced Model 3 Hi-res Certificate Hi-Res Audio Certified  |  What does it mean?

      Hi-Res Audio is a high-quality audio product design standard defined by Sony aim to express the ultimate in musical quality and the original sound. Produces a frequencies over 40,000Hz, making it an essential part of high-resolution audio (96kHz/24-bit) listening experience.

        

      UIISII Hi  -  820入耳式有线立体声低音耳机,带麦克风UiiSii HI820 Graphene Subwoofer HiFi Metal Music Headphones- Cornflower Blue

      UiiSii HI820 Graphene Subwoofer HiFi Metal Music Headphones- Cornflower BlueUiiSii HI820 Graphene Subwoofer HiFi Metal Music Headphones- Cornflower BlueUiiSii HI820 Graphene Subwoofer HiFi Metal Music Headphones- Cornflower Blue
      UiiSii HI820 Graphene Subwoofer HiFi Metal Music Headphones- Cornflower Blue

      UIISII Hi  -  820入耳式有线立体声低音耳机,带麦克风UiiSii HI820 Graphene Subwoofer HiFi Metal Music Headphones- Cornflower Blue

      video:

      Main Features:

      ●The graphene speaker is composed of special patent technology. The graphene speaker has strong but not dull bass, can present deeper drumbeat and a stronger sense of layer with a clearer and highlighted treble.
      ●Hi-Resolution Audio Certified for frequency response up to 40kHz, fully reproducing the audio and also giving you a natural and life-like listening experience
      ●Built-in Microphone, Convenient hands-free calling, Answer, Reject and end calls directly with the earphones.
      ●High-performance sound quality with super dynamic deep bass, high-resolution treble & crisp powerful sound.
      ●Comfortable Ergonomic in-ear design with soft silicone sweat-proof eartips reduces outside noise.

      Specification

      Product Details

      • Material: ABS,Metal
      • Compatible Music: Heavy Metal Bass Music
      • Compatible System: Andriod / Windows / iOS
      • Impedance: 32Ω
      • Sensitivity: 99±3dB
      • Frequency range: 20-40000HZ
      • Plug Pin: 3.5mm 
      • Speaker size: 10mm
      • Cable length: 120cm(Approx. 3.94 Ft)
      • Compatibility: with Compatibility Switch, Fully Compatible for most Mobile Phones, Tablets, Computers, etc.

      Package Contents

      1 x Earphones

      3 x Pairs of Earplugs

      1 x English Manual

      1 x Earphone Storage Box

       

      DOWNLOADS

      Hi-Res Certificate                        Manual

      Terms of Payment

      We accept PayPal (PayPal express checkout) and Card Payments (Visa, MasterCard, American Express, Discover, etc.) by Stripe.

      You can safely enter your entire credit card number via our secure server, which encrypts all submitted information. 

      Please provide a valid credit card and correct credit card information, otherwise payment will be rejected. 

      Note: Your transaction and payment details are handled by Stripe and Pay pal, our secure payment service-provider that upholds strict banking standards. 

      Your credit card details are sent directly to the bank and cannot be read or accessed by any other parties than your bank.

      Shipping & Return Policy

      Shipping Plolicy

      UIISII OFFERS LOW COST, FAST & EFFICIENT SHIPPING WORLDWIDE.

      Our shipping team's sole goal is to get your orders processed and despatched to you in the shortest amount of time. Orders are processed on every Monday to Friday.

      STANDARD SHIPPING

      • We provide standard free shipping for orders over $30.
      • Standard shipping is handled by the post office and usually takes 10-20 days for shipping

        FAST PRIORITY SHIPPING

        • We select DHL/ FedEx express for priority shipping.
        • Priority shipping with 3 - 7 day delivery available to most locations, prices vary by location and displayed at checkout.
        • For order value is higher than $60, we suggest choose fast shipping that delivery success rate is guaranteed.

          How Long It takes order to my country?

          STANDARD SHIPPING

          North America(USA,Canada, Mexico)

          10-16 days

          Australia & New Zealand

          10 - 20 days

          All Europe

          6 – 14 days

          Japan, Singapore & S. Korea

          7 – 10 days

          Rest of Asia

          10 - 20 days

          South America

          20 – 30 days

          Other regions

          10 – 30 days or more.

          FAST PRIORITY SHIPPING

          North America(USA,Canada)

          – 7 days

          Australia & New Zealand

          5 – 10 days

          Asia 3  5 days

            

          IMPORTANT POINTS TO REMEMBER:

          • If you can't receive your products due to an incorrect address we don't take any responsibility and we don't give a refund. Please double check all information before confirming your order.
          • During festive periods, please allow more time for delivery. We do apologize for the inconvenience caused.
          • During certain peak shopping seasons, or during large sales, processing and dispatch time may increase.
          • Tracking is provided on most shipments; not always will online tracking be available.
          •  Note that delivery times may be longer than usual when the parcel reaches the destination country if unexpected delays occur when handed over to the local postal service. 

          TRACK YOUR ORDER:

          Once you have placed an order we will send you a confirmation email. After your package has left our warehouse and begun the delivery process, we will send you another email with a final confirmation and tracking number.

          Using the tracking number you can follow the stages of delivery on your chosen shipping company's website for an estimation on when your product will arrive.

          For more detailed tracking information for your order, try copying & pasting your tracking number into the search bar here: After ship tracking
          This website will show you the most up to date tracking information with your local mail carrier.

           

          Returns Policy

          For products purchased directly on www.uiisii.com, we offer a 30-day return guarantee to ensure your happiness. The 30 day period begins upon the purchase date of your order. Please Click Here go to our help center submit return request and reason.

          Please note, we only accept unopened original packaging products return due to health and hygiene reasons. It is your responsibility as a customer to cover the return shipping costs and if Items lost in transportation will not be compensated for. If you would like to track your return, please check with your logistics company/post office.

          Refunds for returned merchandise will be made within two weeks of the return of the product, to the original purchaser’s credit card.

          Items bought from authorized retailers cannot be returned to us.

          Warranty Policy

          Uiisii One Year Limited Warranty

          Uiisii electronic.,co Ltd (“Company”) hereby warrants that, under normal use, this product will be free from defects in materials and workmanship for a period of one (1) year starting with the original retail purchase date. The replacement warranty is valid only if the original proof of purchase issued to the purchaser, specifying the date of purchase, is presented with the product to be replaced.

          What will be done in the event of a warranty claim?

          Uiisii does not honor any warranty claims that are not accompanied by the original documentation. To get the product repaired or replaced under this limited warranty, you must first contact us and include the following: Click here go to uiisii help center and submit a valid claim request under the Warranty, including:

          A short description of the defect/malfunction
          The proof of purchase (your order number or order screenshot.)
          Your name, address, e-mail, and phone number

          Once your warranty claim is reviewed by uiisii we depending on the individual circumstances, provide Warranty service through one or more of the following options:
          (a) repair your product using new and/or previously used parts that are equivalent to new in performance and reliability.
          (b) replace your product with a product that is at least functionally equivalent to the product and is formed from new and/or previously used parts that are equivalent to new in performance and reliability.
          (c) refund your purchase price in exchange for the return of your Product.


          The Uiisii Warranty does not cover:

          This warranty is not covering all the Accessories, Spare Parts, Replacement Parts items. They are wear and tear items, and damage that naturally and inevitably occurs as a result of normal wear or aging.

          Didn't Purchase directly from uiisii official store(www.uiisii.com) but other third-party sellers.

          Defects and damages due to dropping, mechanical damage, dirt, cerumen, damp, moisture, chemical products, abnormal impact damage, loss, theft, fire or force majeure.

          Esthetical changes, defects, and damages due to normal wear and tear, or aging.

          Customer Reviews

          Based on 9 reviews
          89%
          (8)
          11%
          (1)
          0%
          (0)
          0%
          (0)
          0%
          (0)
          D
          D.
          satisfied

          One part somehow hangs strangely (probably torn off), and so everything is fine. Sound good.

          Dear Customer, Thank you for taking the time to share your thoughts about UIISII headphones. We put our's whole heart into the creation of headphones and we are committed to bringing you a better music experience. Please don't hesitate to let us know if you have any other comments. We'd love to hear from you! Kind regards, Uiisii team.
          P
          P.C.
          Surprisingly impressive

          I received them today, August 7th. They are perfect, the sound is amazing. I finally found a pair that fit my ear correctly. And are very comfortable.
          Thank you.

          Dear Customer, Thank you for taking the time to share your thoughts about UIISII headphones. We put our's whole heart into the creation of headphones and we are committed to bringing you a better music experience. Please don't hesitate to let us know if you have any other comments. We'd love to hear from you! Kind regards, Uiisii team.
          Y
          Y.
          Great Sound

          Beautiful thank you for seller

          W
          W.
          perfect

          Arrived early! Earphone is beautiful! High clear and clean! Perfect! Will evaluate a few days to talk about the battery!! Arrived in perfect condition, well packed!!

          S
          S.
          Very nice

          Shipment has come after 17 days, product is original