Bluetooth Adapter V4.0 CSR Dual Mode Wireless Mini USB Bluetooth Dongle 4.0 Transmitter for Computer PC

Bluetooth Adapter V4.0 CSR Dual Mode Wireless Mini USB Bluetooth Dongle 4.0 Transmitter for Computer PC

$ 9.95

  • Description
  • Additional information
  • Reviews (99)


Item specifics
  • Brand Name:LEAYUM
  • Model Number:BTD-401
  • Bluetooth Standard:Bluetooth v4.0
  • Package:Yes
  • Support:Windows 10 8 Win 7 Vista XP 32/64Bit
  • Model Number:CSR 4.0
  • Working range:20m
  • Indicator light:Yes
  • Transfer rate:3Mbps
  • Frequency range:2.4GHz (2402-2480MHz)
  • Bluetooth version:Bluetooth V4.0+EDR V1.1/2.0/3.0
  • Voltage:5V
  • Bluetooth:bluetooth 4.0
  • Color:Black

* Bluetooth version: 4.0 with EDR – data transfer rate up to 3Mbps
* ISM Band: 2.4GHz
* Operation range: up to 20 meters/50feet
* Support A2D ( Advanced Audio Distribution Profile) and ARVCP (Audio/ Video Remote Control Profile)
* Bluetooth Low Energy (BLE) protocol support.
* Up to 3 Mbps data transfer rate with Enhanced Data Rate (EDR) support.
* LED indicator indicates device status.
* Low power selectable 1.2 to 3.6VI/O
Supported Bluetooth Profiles 
* Networking,Dial-up,Fax,LAN access,and Headset.
Supported Operating System 
*Plug and Play for Win 10/8.1/8, no need to install driver. For Win 7/XP/Vista, Please install the driver included firstly.
* NOT Supported: ARM-Based Windows RT, Mac OS, Linux
Compatible Bluetooth Devices 
* Supported: wireless Bluetooth-enabled devices, like smartphones, keyboards, mice, headsets, headphones, speakers, printers, modems, serial devices and more
* NOT Supported: home theater or automotive systems.

Additional information

Weight 0.04 oz
Dimensions 5 x 3 x 3 in
Brand Name


Bluetooth Standard

Bluetooth v4.0




Windows 10 8 Win 7 Vista XP 32/64Bit

Model Number

CSR 4.0

Working range


Indicator light


Transfer rate


Frequency range

2.4GHz (2402-2480MHz)

Bluetooth version

Bluetooth V4.0+EDR V1.1/2.0/3.0




bluetooth 4.0



99 reviews for Bluetooth Adapter V4.0 CSR Dual Mode Wireless Mini USB Bluetooth Dongle 4.0 Transmitter for Computer PC

  1. 5 out of 5

    Now is fast, foremost perfect

  2. 5 out of 5

    Perfect todo, Fast shipping. For mom

  3. 5 out of 5

    goods as described, best regards

  4. 5 out of 5

    All good, adapter works.

  5. 5 out of 5

    It perfectly matches the description is very small, but good, delivery fast, less than a month, thanks

  6. 5 out of 5

    Excellent, recommended Seller!

  7. 5 out of 5

    Fast shipping, good product-works perfect, thanks…

  8. 5 out of 5

    Product Description 100% very good Bluetooth satisfied And Advise you buy from this seller this product.

  9. 5 out of 5

    it is good. plug and play

  10. 5 out of 5

    Good i recommend this item.

  11. 5 out of 5

    Todo correct.

  12. 5 out of 5

    Everything works fine.

  13. 5 out of 5

    All OK. Works.

  14. 3 out of 5

    Comprei 6 veio 5

  15. 5 out of 5

    Thanks checked, stereo play, quality excellent

  16. 5 out of 5

    Super Fast shipping! Came to Minsk for 2.5 weeks! The Windows 7 64 had to install driver disk! It works! Thank You Very Much!

  17. 5 out of 5

    Goes perfectly.

  18. 5 out of 5

    Works well. Transfer files and for audio

  19. 5 out of 5

    OK! Everything is fine. All works.

  20. 5 out of 5

    Fast shipping, simple installation, but sound Bluetooth headphones disgusting via this adapter. Hopefully just got this.

  21. 5 out of 5

    Received the goods packed well As connected to accomplish your goal

  22. 5 out of 5

    Excellent Seller!!!

  23. 5 out of 5

    Very nice product, fast delivery (for aliexpress standards) works well with windows 8.0 and linux mint. Comes with small driver cd, windows does not find the driver on itself, so you have to use the cd.

  24. 5 out of 5

    The Track is not monitored, the way a little longer than 20 days

  25. 5 out of 5

    Works well: V

  26. 5 out of 5

    Work fine, comes with a mini CD with drivers, but to me it is not needed, drivers installed automatically on Windows 10.

  27. 4 out of 5

    It doesnot work

  28. 4 out of 5

    In general, it’s pretty good. It is put it and start working perfectly. I Bought is you and not another, by it is petty and does not have a horrible light reflecting on the whole room set as others and also by that in theory had a quite acceptable scope, have to say is to last, by at least in my case, not is the foremost true. As far as I go out of the room set wherein is the PC listening to music with headphones, it starts to entrecortar, although I guess it will be by the theme walls… Total I what I want for listen music in the computer, well I don’t go to any site… Now is quite fast, in less than 2 weeks and the packet is ok, came with a CD but in my case, with W10 not did missing do anything. Maybe buying another more cheap also work like this, but I by make sure I bought this and found it quite well, recommend.

  29. 5 out of 5

    Wonderful product. Works super easy. No installation required. Very happy

  30. 5 out of 5

    Item as described, fast delivery

  31. 5 out of 5

    Product is fine

  32. 5 out of 5

    OK. Used in Windows 10, no need drives, connected to Xbox One easily and fast.

  33. 5 out of 5

    Works perfectly with original Sony Dualshock 4 and PC, no drivers needed, just works. Extremely impressed, over 20 meter range. I measured it with a tape measure. Controller works perfectly through Bluetooth. This is definitely the best Bluetooth adapter to get. Excellent for gaming paired with the DS4.

  34. 3 out of 5

    Looking For a Bluetooth adapter is only suitable for audio… Gamepad podsoedenit nimu impossible in the error

  35. 5 out of 5

    Items come in one piece, though very long: 32 days. Install the driver, reaching the disc included, connect the adapter, included earphones jbl e45bt-quality sound turned disastrous, as if from a pipe some, muffled sound. On the forums and found a solution: need other drivers. Installed BlueSoleil 10.0.497.0-and the sound was the ideal: clean and басистым (in. Songs). So The seller recommend, goods is good, but the driver disk directly into the furnace-Swing BlueSoleil))

  36. 5 out of 5

    Came very well packaged, even includes a package with the specifications, very good bt, recommended seller!

  37. 5 out of 5

    Good Product. Fast Shipping. It’s working Plug N Play in Windows 10. No need of C.D. Or an other Driver. Thank you Seller & Aliexpress.

  38. 5 out of 5

    Very good and necessary thing. Delivered quickly. The price of the Quality

  39. 5 out of 5


  40. 5 out of 5

    The parcel fast in 3 weeks in Yakutsk it works in the description.

  41. 5 out of 5

    works well. Recomended !

  42. 5 out of 5

    Package came quickly. Items are well-packed. Take to connect headphones with PC. It works, consistent with the description. Complete Set driver disk. Thank you very much. Recommend.

  43. 5 out of 5

    Working in win10 right, it quickly

  44. 5 out of 5

    Parcel reached Khabarovsk for 35 days. Track is not monitored. Packaged in original packaging and in an envelope. Comes with a driver disk. Disc did not use, since when connecting to computer driver installed automatically. WITH the phone and headset connection is no problem. Is fully consistent with the description. Seller recommend!

  45. 5 out of 5

    Everything is fine, fast, high quality!

  46. 5 out of 5

    OK !

  47. 5 out of 5

    Works well. No problem.

  48. 5 out of 5

    Work’s fine, cheap price. Thank’s !

  49. 2 out of 5

    Works of No lace whatever you tried

  50. 5 out of 5

    just in time … comes with a cd .. gotta install the app then sart connecting and rocking the music … my headphones drivers are blasting (try keke you love me lmfao) all good thanks have a good one .

  51. 5 out of 5

    Shipping to Moscow-for 10 days. External adapter looks very carefully. USB-разъём closed cap as the stick. Included-8 cm disc, probably with drivers. IN Win10x64 device immediately defined and established automatically, disk is not needed. THE real work is not checked.

  52. 5 out of 5

    All works. The driver disk available. Thank You Very Much!

  53. 5 out of 5

    Good adapter, works without problems. Shipping fast (via ePacket). Complete disc available. Goods and seller suggest.

  54. 5 out of 5

    extremely fast shipping , just 1 week to Holland, good product , great seller , recommended !

  55. 5 out of 5

    Install the driver, NK looking device, sees them, but is not connected. The interface is not! That’s the whole review)))

  56. 5 out of 5

    Shipping 8 days in Leningrad region. Works. Recommend.

  57. 5 out of 5

    OK. Works. To put the driver Disk

  58. 5 out of 5

    Normal Work

  59. 5 out of 5

    all right arrived

  60. 5 out of 5

    All Is super! Recommend product and seller!

  61. 4 out of 5

    Works great,cheap, fast delivery but range is not so good. Still okay for its price!

  62. 5 out of 5

    Do not get the product But returned the money full without any trouble

  63. 4 out of 5

    Works without any problems!

  64. 5 out of 5

    very good seller. Highly recommended. I would have rated 6 stars for his service since only is available rating 5. Pleasure to do business with

  65. 5 out of 5

    All decorum, noble, it works. CD with drivers and N/A set. Recommend!

  66. 4 out of 5

    Very slow shipping, more than 1 month.

  67. 5 out of 5

    Product is good, Saler is very good connection, first adaptor is not good , second one send also free of charge, I am very glad

  68. 5 out of 5

    It is up to the Suburbs for 3 weeks, all fit the description.

  69. 5 out of 5

    Just like in the description. product content.

  70. 5 out of 5

    Quality product that is recognized by the PC and other devices nearby.

  71. 5 out of 5

    It works! All super

  72. 5 out of 5

    Very fast delivery. Got set, work perfect! Very fast delivery. Got it, installed it, works fine!

  73. 5 out of 5

    Super rapide

  74. 5 out of 5

    Fast shipping (to Lipetsk 14 days). Just as in the description. Works fine. Seller recommend.

  75. 5 out of 5

    Goods came quickly, your computer is connected without additional driver, stable. All happy!

  76. 5 out of 5

    Product compliant, good compatibility with Windows 10

  77. 5 out of 5

    Very satisfied with this item. Highly recommended this seller. Definitely would deal with him again.

  78. 5 out of 5

    Pratsyuє їhala ere three tizhnі хвилин 10 возився s налаштуваннями on компі (I kettle computers 🙂 Kupuvav for 3.9долара and if otrimav подешевів up to 3.63-OVERPAYING 🙁 🙂

  79. 5 out of 5

    Very good product. Comes with CD with the driver.

  80. 5 out of 5

    Fast delivery and worked perfect, recommend

  81. 5 out of 5

    You are the best number 1 I love the product and I will buy more soon, than you

  82. 5 out of 5

    The Windows 7 driver for cheap headphone Bluedio found itself! No problems at all. Just wait until the end installation and перегрузился. It works, I’m happy.

  83. 5 out of 5

    Item as described. thanks

  84. 3 out of 5

    Does not work . Windows 7 64bit finds it installs drivers but can not be sent or received bluetooth does not find other devices

  85. 5 out of 5

    All the rules. Shipping is not too faster , It is faster.

  86. 5 out of 5

    Nebandžiau, Jei cash bus blogai, parašysiu.

  87. 5 out of 5

    Excellent work, many thanks.

  88. 5 out of 5

    Work on the win10 with box. Range of more than my old adapter (BT 3.0) Order some products from other sellers Books the latest within 8 days. AND came first. The rest are still waiting.

  89. 3 out of 5

    the dungle not always finds my bluetooth headphones. only after i unpair and pair again it works not sure if its win 10 issue.

  90. 5 out of 5

    The Parcel was three weeks. The Windows 10 installation without additional drivers. Works fine. Recommend!

  91. 5 out of 5

    Delivered quickly, but the tracking of latviyu was not. The Parcel immediately appeared at the point of delivery. Works fine, the Windows 10 works without additional drivers.

  92. 5 out of 5

    Good product, work very well.

  93. 3 out of 5

    Just arrived, did not have a chance to test it yet, hoping for the best

  94. 1 out of 5

    Not working at win 8.1 is searching and not works

  95. 5 out of 5

    To be honest, X knows why I bought this s nude. Maybe it fits the description, but maybe not. Later of course will understand you pay for money. IN general, sorry. It’s still without comment.

  96. 5 out of 5

    Fits the description of goods, the seller shipped quickly, but almost one and a half months depends in Russian Post, so time to extend. Was almost 2 months, but the seller’s fault that. The requests he answered promptly. Seller recommend.

  97. 5 out of 5

    The RF tracker tracking

  98. 5 out of 5

    Surprised by the Russian))) works great. Period of 14 days to MSK

  99. 5 out of 5

    All at the highest level. Thank you very much.

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