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      The UiiSii GT900 has 12mm Dynamic Drivers. This provides a high-frequency range, for very deep displays, well balanced middle and high displays so that you can distinguish each instrument perfectly from each other. Enable the excellent bass diving ability. The large drivers also ensure that the sound is not distorted even at high volume.




      Main Features:

      ●【DYNAMIC DRIVERS OF 12MM CREATE A WONDERFUL SOUND】The UiiSii GT900 has Dynamic drivers of 12 mm produce deep bass, perfectly balanced midtones. This ensures a high-frequency range, very deep tones, as well as refined and well-balanced mid and high tones, so that you can perfectly distinguish each instrument from each other.

      ●【BUILT-IN MICROPHONE, PERFECT TO CALL】The built-in microphone makes it possible to answer your calls, and thanks to the control panel you can do this without having to take the phone out of your pocket. Simply connect the earphones with your smartphone and you will receive incoming calls on the earphones. 

      ●【100% COMPATIBILITY】3.5 mm gold platinum plated connection , so there is almost no loss of quality.

      ●【BEAUTIFUL AND LIGHT ALUMINUM DESIGNThe acoustic chamber of the ears are made of aluminum. This ensures a lightweight and therefore pleasant wearing comfort, improved durability, and they are also pleasing to the eye. The acoustic rooms have also been given a special structure to produce a better and fuller sound. 

      ●【DEVELOPED WITH AN EYE ON SUSTAINABILITY AND HIGH QUALITY】All elements in these ears are made of high-quality material. You can tell by the use of the high-quality Dynamic drivers of 12mm, the gold-plated contact points, the Silicone material used for the earplugs, the aluminum acoustic chambers, and also in the TPE cable that is flexible and yet resistant to years of intensive use. The microphone is from Knowles, and the ceramic antenna is from Mitsubishi.

      ERGONOMIC - FITS IN EVERY EAR】The Silicone material feels soft and supple, but is still strong enough to stay in your ears. The earbuds come in 2 different sizes: this way they really fit in all possible ears, and they still feel good after many hours of wearing.

      You can easily control your music and telephone conversations via the multifunctional button. So you never have to take your phone out of your pocket!
      Features of the control panel at a glance:
      • Play/pause music: press the button once
      • Adjust volume: press or keep pressing Volume + or Volume-
      • Accept/make the incoming call: press the button once

      Product Details

      • Cable Length (m): 3.93Ft
      • Driver unit: 0.039Ft/0.47in
      • Frequency response: 20-20000Hz 
      • Impedance: 32Ω 
      • Plug Type: 3.5mm,Full-sized 
      • Sensitivity: 93dB ± 3dB
      • Compatible with: Computer,iPhone,iPod,Mobile phone,MP3,PC,Portable Media Player

      Dimensions and Weight

      • Product weight: 0.0150 kg 
      • Package Weight: 0.1200 kg 
      • Package size (L x W x H): 23.00 x 9.00 x 4.00 cm / 9.06 x 3.54 x 1.57 inches

      Package Contents

      1 x Earphones

      1 x English Manual

      2 x Pair of Standby Earbud Tips

      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:

      What Shipping Methods Do You Provide?

      Our shipping team's sole goal is to get your orders processed and despatched to you in the shortest amount of time. 

      We provide two shipping methods for you: Standard shipping and Fast Priority shipping.

      Check UiiSii COVID-19 Security Terms


      • We provide standard free shipping for orders over $49.
      • Standard shipping is handled by the post office and usually takes 10-20 days for shipping.
      • In some areas with severe COVID19, the transportation time may be delayed by about 1 week.


      • We select DHL/ FedEx express for priority shipping. Due to the influence of COVID19, the transportation and distribution time will be longer than before.
      • Priority shipping with 5 -10 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 does it take to receive my order?


          North America(USA,Canada, Mexico)

          10-16 days

          Australia & New Zealand

          10 - 20 days

          All Europe

          6 – 14 days

          Japan, Singapore & S. Korea

          5 – 10 days

          Rest of Asia

          10 - 20 days

          South America

          20 – 30 days

          Other regions

          10 – 30 days or more.


          North America(USA,Canada, Mexico)

          – 7 days

          Australia & New Zealand

          5 – 10 days

          All Europe 5 – 10 days
          Japan, Singapore & S. Korea 5 – 10 days


          How to tarck my 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: Shipping Tracking
          This website will show you the most up to date tracking information with your local mail carrier.

          Key Poins To Note:

          • 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.
          • If you need to make changes to your order, please email us within 24 hours of placing your order and we will be happy to make the required changes. If your order has already been shipped we will not be able to change it unfortunately.
          • During festive periods, please allow more time for delivery. We do apologize for the inconvenience caused.
          •  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 express service. (Usually didn't happen)

            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 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 8 reviews
            Fast shipping
            I recommend!
            Quite satisfied
            Another good buy from Uiisii.