--- product_id: 50140394 title: "LMTECH Bluetooth CSR 4.0 USB Dongle Adapter Bluetooth Transmitter and Receiver Bluetooth Transmitter and Receiver For Laptop Compatible with Window XP / Vista / Windows 7/8/10" brand: "leyueyuan" price: "₹ 52" currency: INR in_stock: false reviews_count: 8 url: https://www.desertcart.in/products/50140394-lmtech-bluetooth-csr-4-0-usb-dongle-adapter-bluetooth-transmitter store_origin: IN region: India --- # 3Mbps high-speed data transfer Up to 50m wireless range Low energy dual power LMTECH Bluetooth CSR 4.0 USB Dongle Adapter Bluetooth Transmitter and Receiver Bluetooth Transmitter and Receiver For Laptop Compatible with Window XP / Vista / Windows 7/8/10 **Brand:** leyueyuan **Price:** ₹ 52 **Availability:** ❌ Out of Stock ## Summary > 🔗 Unlock wireless freedom with LMTECH’s Bluetooth dongle—connect smarter, live freer! ## Quick Answers - **What is this?** LMTECH Bluetooth CSR 4.0 USB Dongle Adapter Bluetooth Transmitter and Receiver Bluetooth Transmitter and Receiver For Laptop Compatible with Window XP / Vista / Windows 7/8/10 by leyueyuan - **How much does it cost?** ₹ 52 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/50140394-lmtech-bluetooth-csr-4-0-usb-dongle-adapter-bluetooth-transmitter) ## Best For - leyueyuan enthusiasts ## Why This Product - Trusted leyueyuan brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Compatibility:** Works flawlessly with Windows XP through 10, 32 & 64-bit versions - • **Dual Mode Functionality:** Acts as both transmitter and receiver for ultimate flexibility - • **Energy Efficient Design:** Low power consumption with adjustable voltage for longer device life - • **Extended Wireless Range:** Enjoy stable connections up to 50 meters—cut the cords, not the distance - • **Multilingual & Voice Support:** Supports multiple languages and Bluetooth voice data for global usability ## Overview The LMTECH Bluetooth CSR 4.0 USB Dongle is a versatile wireless adapter compatible with a wide range of Windows operating systems. Featuring dual transmitter and receiver modes, it delivers high-speed data transfer up to 3Mbps and a robust wireless range of up to 50 meters. Its low energy consumption and multi-language support make it an efficient and globally adaptable solution for seamless Bluetooth connectivity. ## Description Product Description: Key features: Bluetooth low energy Radio USB Dongle Dual-mode Bluetooth transfer Low-power selectable 1.2 to 3.6VI/O. Supporting Bluetooth voice data Supporting multi languages WLAN coexistence interface Plug and play Specification: Bluetooth specification V4.0 compliant. Supporting profiles：Networking, Dial-up, Fax, LAN access, and Headset Operation system: windows98, 98se, Me, 2000, XP, Vista, windows 7/8/10. Interface: USB compliance Symbol rate: 3Mbps Receiving/Sending range: 20m-50m package include: 1 x Bluetooth 4.0 USB Dongle Adapter 1 x Bluetooth 4.0 USB Dongle Adapter Driver ## Features - Latest Version: Bluetooth CSR 4.0 wireless adapter, low energy, dual power. - Wide Range of Application: With Licensed CD driver, it is compatible with 32 bit and 64 bit Windows 10 / 8 / 7 / XP, Vista, windows98, 98se, 2000 and Me. - Multi Languages Support: It is supporting multi languages and Bluetooth voice data. - Low Power: You can select power from 1.2 to 3.6VI/O. - High Speed and Wide Range: Its symbol rate is up to 3Mbps and its receiving/sending range is 20m-50m. ## Product Details - **Brand:** leyueyuan - **Hardware interface:** Bluetooth, USB - **Colour:** 3 - **Compatible devices:** Laptop - **Data link protocol:** Bluetooth, USB - **UPC:** 611029276132 - **Manufacturer:** LMTECH ## Images ![LMTECH Bluetooth CSR 4.0 USB Dongle Adapter Bluetooth Transmitter and Receiver Bluetooth Transmitter and Receiver For Laptop Compatible with Window XP / Vista / Windows 7/8/10 - Image 1](https://m.media-amazon.com/images/I/61flBJGHOwL.jpg) ![LMTECH Bluetooth CSR 4.0 USB Dongle Adapter Bluetooth Transmitter and Receiver Bluetooth Transmitter and Receiver For Laptop Compatible with Window XP / Vista / Windows 7/8/10 - Image 2](https://m.media-amazon.com/images/I/61flBJGHOwL.jpg) ![LMTECH Bluetooth CSR 4.0 USB Dongle Adapter Bluetooth Transmitter and Receiver Bluetooth Transmitter and Receiver For Laptop Compatible with Window XP / Vista / Windows 7/8/10 - Image 3](https://m.media-amazon.com/images/I/51a-LJ3wGTL.jpg) ![LMTECH Bluetooth CSR 4.0 USB Dongle Adapter Bluetooth Transmitter and Receiver Bluetooth Transmitter and Receiver For Laptop Compatible with Window XP / Vista / Windows 7/8/10 - Image 4](https://m.media-amazon.com/images/I/61wox+k5-yL.jpg) ![LMTECH Bluetooth CSR 4.0 USB Dongle Adapter Bluetooth Transmitter and Receiver Bluetooth Transmitter and Receiver For Laptop Compatible with Window XP / Vista / Windows 7/8/10 - Image 5](https://m.media-amazon.com/images/I/61Z+pD-7nLL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works flawlessly for PS3 controllers *by M***E on 22 April 2019* I want to play Overcooked with my partner but don't have a recent console. I do have a PS3 with a pair of controllers and a PC. The controllers worked easily by downloading SCPtoolkit and plugging in over miniUSB. To get the full console experience, I just stuck this dongle in a front USB port, got used SCPtoolkit to ensure the right driver and unplugged the controller, simple as that! The controller does need to be wired to wired the first time to pair, but now I can turn them on and off at will and they connect automatically. Range is decent, probably 5m line of sight, ac ouple of metres if I'm in the way. I'm very satisfied. ### ⭐⭐⭐⭐⭐ It was plug and play in Linux (tried LinuxMint and ... *by N***T on 17 July 2017* It was plug and play in Linux (tried LinuxMint and Ubuntu).On Windows it was quite tricky and I ended up getting the info on how to make it work from a youtube video in russian!!!!Anyway. It is not the product's fault, sonce it is well documented that Windows has problems with Bluetooth drivers.The workaround I had to do to make it work was to install the drivers from the CD. And then go into Device Manager and choose the Generic Adapter driver.Just leaving this here in case it helps someone. ### ⭐⭐⭐⭐⭐ Inadequate Tooth Replacement *by A***R on 27 April 2020* Installation was straightforward but the product is simply too large to replace any outgoing molars. Sure, we all want good oral Bluetooth connectivity but be mindful of the size of your trap! PLEASE don't be as foolish and make the same mistake, ALWAYS measure the size of your trap first. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.in/products/50140394-lmtech-bluetooth-csr-4-0-usb-dongle-adapter-bluetooth-transmitter](https://www.desertcart.in/products/50140394-lmtech-bluetooth-csr-4-0-usb-dongle-adapter-bluetooth-transmitter) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-05-03*