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      UiiSii BT-CM5 sports wireless headphones use the popular element of the starry sky, adding a lot of fashion sense. A three-hour battery pack can power your workout for a week and with a seamless Bluetooth connection, make sure your workout is safe and comfortable, you can adapt to any environment. These little powerhouses offer water resistance and superior connectivity, so it can keep high fidelity audio to stop distractions.






      [ SECURE EARHOOK DESIGN ] The use of high elastic TPE wire and ear hook style brings about more comfortable wear experience and makes the earphones wear more firmly, will not fall even after strenuous exercise.

      [ HIGH-QUALITY MIC & EARBUDS ] Knowles silicon microphone features high sensitivity and low noise, and the transmitted sound can be clear and natural. Ditch the distractions and listen at your preferred volume without interference from external noise, thanks to noise-canceling earbud technology.

      [ UP TO 8 HOURS PLAYTIME ] Uiisii Bluetooth headphones rechargeable battery supports up to 8-9 hours playtime and 240 hours standby with just 1-2 hours charging. Prolonging time meets your demands of continuous and enjoyable exercise. (Note: Please fully charge it for the first use.)

      【Reliable Connection】Bluetooth 4.1 technology ensures a seamless and stable wireless connection for a smooth listening experience. 

      [ IPX5 WATERPROOF ] This headset features a high-performance sports design that is perfect for that super-sweaty workout. You will love BT-CM5 so much you won't want to take them off-even after your workout. But don't worry, they are waterproof.   



      Audio Details
      • Speaker: 10mm Dynamic Drive, Neodymium Magnet, 20Hz-20kHz, 32Ω ± 15%
      • Output: 114±3db
      • Microphone: MEMS, - 41dB±3dB
      Battery Details
      • Battery Life: 12 Hours
      • Input Power: 150mAh/3.7V
      • Earbud Charge Time: 3.5 Hours
      • Standby Time: about 240 Hours
      Bluetooth Details
      • Version: Bluetooth4.1
      • Bluetooth Chip: QCC3003
      • Range: 30+ ft.
      • Support Protocols: HSP/HFP/A2DP/AVRCP

      General Details

      • Wire length: 11.81in
      • IP Rating: IPX5
      • Warranty: 2 year warranty

      Package Contents

      1 x User Guide 
      1 x Pair of Headphone
      1 x Carring Case     
      1 x USB Charging Cable
      6 x Pair of Different Size Extra Earplugs

      Multi-Function Button Feature:
      1 click - Answer / Hang-up calls / Play music / Pause music
      1 long press - Reject calls
      long press-  -Next song
      long press+ - Previous song





        Terms of Payment

        We accept credit card payments (Visa, MasterCard, American Express, Discover and more), for credit card payments it is support by stripe. Another security payment method is PayPal (PayPal express checkout).

        As a rule payments are processed instantly, however, depending on the payment method and the banking system, sometimes the payment processing may take up to 2-3 business days. 

        Kindly note, as we are not charging payments directly - it may take some time to be processed through the payment systems. In most cases it takes few hours , but can take up to 5 business days. 

        We cannot accept liability for payments being recorded on the wrong account if you supply inaccurate information, but will make every effort to reallocate any such payments if they arise. We cannot accept liability if payment is refused or declined by your credit/debit card supplier for any reason.

        Note: All your money are protect security by PayPal and Stripe. We supuort 30 money back guarantee after you receive our products, check our Shipping&Return Policy

        For more question check our FAQs

        Shipping&Return Policy



        Our shipping teams sole goal is to get your orders processed and dispatched to you in the shortest amount of time. Orders are processed in the morning every Monday to Friday.


        • We support standard shipping by country local post office.
        • Free shipping for order up to $30
        • $5.99 shipping fee for per order less than $30
        • India&Bangladesh all through post express shipping cost 6.99$
        • Please confirm the standard shipping has a probability of being checked by customs for this situation need to customer deliver small tariffs.


        • We usually by DHL/Fedex priority shipping.
        • Priority shipping with 3 - 7 day delivery available to most location, 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 dose It take an order to my country?


        North America(USA,Canada, Mexico)

        10-20 days

        Australia & New Zealand

        10 - 20 days

        All Europe

        8 – 15 days

        Japan, Singapore & S. Korea

        7 – 10 days

        Rest of Asia

        10 - 20 days

        South America

        20 – 35 days

        Other regions

        20 – 30 days or more.


        North America(USA,Canada)

        5-7 days

        Australia & New Zealand

        5 – 10 days

        Asia 3-5 days



        The shipping choices available from our Site's online store are estimates and do not guarantee the date of delivery. In no event will we be liable for any loss, damage, or penalty resulting from any delay in shipment or delivery. Your package will be processed using the selected shipping method, typically within 1-2 business day of your order being been approved (depending on Product availability and the time of day your order is submitted). After your package has been shipped, you will receive an email containing a shipping confirmation, tracking number and carrier information. In order to avoid any additional return shipping charges, make sure that a household member is there to receive your package. 

        Packages returned to our fulfillment centers, due to incorrect addresses will be subject to return shipping fees. 

        Orders are not processed or shipped on the weekends and holidays. Weekend days should not be considered when calculating your delivery date. 



        • If you can't receive your products due to incorrect address we don't take any responsibility and we don't give a refund.Please double check all information before confirming your order.
        • Days are expressed as working days which are Monday to Friday, and does not include weekends or regional public holidays. 
        • 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.



        You can track the progress of your order in 2 ways:

        Track using your EMAIL address and ORDER NUMBER using a carrier tracking number (if you received one) 

        Alternatively, shipments can be tracked at Aftership


        We're proud of the products we design. 

        For products purchased directly on, we offer a 30 Day Guarantee to ensure your happiness. The 30 day period begins upon the purchase date of your order.Returns will only be accepted if labels and original packaging are fully intact. cannot accept returns where labels have been removed.

        Furthermore, and due to health and hygiene reasons, you have no right to return in-ear products if such product’s packaging has been opened, meaning that the packaging seals are broken.

        You are responsible for the shipping of returned items back to Items lost in transportation will not be compensated for.

        Shipping charges on returned merchandise are at the customer’s expense. However, will not charge additional shipping on exchanges. Refunds for returned merchandise will be made within two weeks of the return of the product, to the original purchaser’s credit card. Note that additional duties and/or taxes will not be refunded. Neither will shipping costs. All exchanges are subject to availability.

        Faulty items will be exchanged to the same type of product in the same size, subject to availability. Refunds for faulty items can be made within the 30-day period following delivery.

        For exchanges and returns send an email to

        For products purchased in-store or from third party online resellers:

        If in the event you purchased a Uiisii product from an in-store retail location or from another online retailer, the 30 Day Guarantee does not apply. Please review our Warranty policy.


        Customer Reviews

        Based on 15 reviews
        Great Value!

        This is my second purchase of Uiisii's wireless ear buds (lost the first pair) and I am so glad I didn't go spend a ton of money on other more expensive products. They are lightweight, and the assortment of options of supports and ear bud pieces mean they can be customized to fit you perfectly. They are super comfortable. The key is to let them sit lightly in the ear. If they are in too far the sound is muffled. I find the clarity to be excellent! I mostly use them to listen to music on the subway every day and I have never been disappointed. Never fuzzy or clicky, discreet, customizable, and very affordable. I highly recommend them.

        Hi Travis,

        Thank you so much for your support! We are very happy that you are satisfied with our products and your satisfaction is of great significance to us. We always do our best to provide good quality products to our customers and stand behind our product and responsible for them.

        Best regards,

        Uiisii team

        Broke after less than a year

        I really wanted to like these headphones, they were comfortable and very handy for workouts especially. The pairing function was easy to use, and would pair with all our bluetooth devices. However, after eight months one of the earbuds just stopped working. Buyer beware.

        Hi Keith,

        Thank you for posting a product review to bring your issue to our attention. We are apologize for your experience with our products.

        Don't worry, we always stand behind our product and responsible for them. (We provide a 12-month warranty for all quality issues. )

        We are dedicated to ensuring your 100% satisfaction. If you have any concerns or questions, please feel free to contact us via our service email: We will try our best to solve it for you.

        Thank you!

        Uiisii team


        The product is awesome. Cant even understand why people pay $199 for powerbeats 3. I compared them side by side. These are equal or better in many ways.

        Well worth the price

        These are solid. I had a better pair before, but I've also had many worse. Price is right. Recommended.


        Durable for workouts and comfortable. Easy to connect to my android.