--- product_id: 434288798 title: "Bluetooth Car Adapter, AUX Bluetooth Adapter for Car with Ground Loop Noise Isolator for Handsfree Talking and Music Streaming, Wireless Bluetooth Receiver with Dual Port USB Car Charger, Input Port" brand: "smof" price: "HK$551" currency: HKD in_stock: true reviews_count: 13 category: "Smof" url: https://www.desertcart.hk/products/434288798-bluetooth-car-adapter-aux-bluetooth-adapter-for-car-with-ground store_origin: HK region: Hong Kong --- # Ground loop noise isolator 3.5mm AUX stereo input/output Dual USB ports for charging Bluetooth Car Adapter, AUX Bluetooth Adapter for Car with Ground Loop Noise Isolator for Handsfree Talking and Music Streaming, Wireless Bluetooth Receiver with Dual Port USB Car Charger, Input Port **Brand:** smof **Price:** HK$551 **Availability:** ✅ In Stock ## Summary > 🚗🔊 Upgrade your drive: wireless freedom meets crystal-clear sound! ## Quick Answers - **What is this?** Bluetooth Car Adapter, AUX Bluetooth Adapter for Car with Ground Loop Noise Isolator for Handsfree Talking and Music Streaming, Wireless Bluetooth Receiver with Dual Port USB Car Charger, Input Port by smof - **How much does it cost?** HK$551 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/434288798-bluetooth-car-adapter-aux-bluetooth-adapter-for-car-with-ground) ## Best For - smof enthusiasts ## Why This Product - Trusted smof brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power Up On The Go:** Dual USB car charger ports keep your devices fully charged during every drive. - • **Crystal Clear Sound:** Noise isolator eliminates background hum for premium audio clarity. - • **Dual Device Connectivity:** Connect two Bluetooth devices simultaneously and switch effortlessly between playlists. - • **Revive Your Classic Audio:** Wirelessly stream music through any AUX-enabled device—no Bluetooth? No problem. - • **Seamless Hands-Free Calls:** Built-in mic with voice activation keeps you safe and connected on the road. ## Overview The Smof Bluetooth Car Adapter transforms any AUX-enabled car stereo into a wireless Bluetooth hub, featuring a built-in microphone for hands-free calls, a ground loop noise isolator for superior sound quality, and dual USB ports to charge multiple devices simultaneously. Its dual Bluetooth connection lets you effortlessly switch between two devices, making it the ultimate upgrade for modern drivers seeking convenience, safety, and premium audio on the road. ## Description Product Description Voice Assistant / Hands-free / Hi-Fi Music / Dual Connection / Dual Port USB Car Charger/ Noise Canellation How to Use The Bluetooth Receiver for Car The Smof brand is determined to create electronic products that solve the small problems in your life. If the product has any quality or operational problems, we will give solution. Fix the receiver on the best position ofthe car. Connect the receiver to the AUX-in jack of the car stereo system. Connect the receiver to the car charger. Plug the car charger into the cigarette socket. Pairthe receiver to your smart device. Adjust the car radio to AUX in mode. Frequency Range: 2.4GHz Bluetooth Mode: HFP/HSP/A2DP/AVRCP Bluetooth Range: upto 30feet Charging Input: DC 12V-24V Charging Output: DC 5V / 2.4A (MAX) Built-in Microphone Support hands-free phone and language assistant wake up Double connection After A mobile phone is connected, turn off Bluetooth,The device will enter the pairing connection to the B mobile phone, after the B mobile phone is connected Turn on the Bluetooth function of A mobile phone, select "Smof" and connect successfully Packing list l x Smof Bluetooth music receiver l x Noise Isolator l x 3.5mm Audio Cable l x Car Charger l x User Manual Multifunction Button Quick Press: Answer or Hang up call Long Press: Reject call Double press: Redial the last call. AUTO-ON & AUTO-CONNECT The receiver part comes with a magnetic mounting base to be tightened on your phone. And the audio receiver will power on automatically when you start the car, then auto sync with the last connected phone (Note: Please make sure the Bluetooth of your phone is turned on before starting the car). If you experienced background noise, Just plug the audio cable ofthe product into one port ofthe isolator, and then use the single 3.5mm audio cable to connect the other port of the isolator with your car AUX input. Review: Works well - Easy to set and connect to phone for listening to audio books and spotify Review: Pretty impressive and well priced - I bought this a few weeks ago after becoming frustrated with the third set of leads that I’d bought to connect my iPhone to my car stereo. I use my phone for music and Sat nav fairly regularly, but especially on long journeys, and this has worked great for that. The leads are quite long, so would work well in a van or truck, I’ve cable tied them down to the length I need and tucked them out of sight. The microphone unit has three buttons on it, one to accept and end calls (that also makes the Bluetooth discoverable or reconnect if the blue light is flashing rather than one permanent, to confirm that it is connected), then a back and forward button that allows me to skip tracks playing from my iPhone without scrolling away from my Sat nav app to find the music app. The sound quality with the noise inhibiting thingy seems fine to me, my car stereo isn’t the last word in technical prowess, but the music and voice commands both sound fine. The phone dips the music to allow any voice control to come through before resuming the music again. The one quirk, which others mentioned and I have had issues with, although it is down to my car more than the device is that it doesn’t always automatically connect to my phone every time. My car powers up the power plug as soon as the door opens after being unlocked, so the device does connect automatically then, but the break in power whilst starting the engine disturbs the power supply, so the Bluetooth doesn’t always reconnect afterwards. I have noticed that a little patience and pressing the call answer/end button does reconnect the Bluetooth fine though, and it is definitely a quirk that will confuse any Bluetooth connection a little. Overall it is working much better that the various combos of leads that I have tried before and I whole heartily recommend it! ## Features - Hands-free calling: the built-in microphone of the Bluetooth adapter allows you to make hands-free calls while driving. The voice activation function frees your hands, which ensures safe driving and easy travel. - Wireless music: The 3.5 mm AUX port equipped with the Bluetooth audio adapter allows you to connect it to non-Bluetooth-enabled car radio systems, home stereos, old-fashioned speakers and wired headphones to enjoy wireless music at any time and reuse the non-Bluetooth-enabled devices. - Noise isolator: Normally, the sound quality is very good. If you encounter background noise, simply connect the audio cable of this product to one connector of the insulator, then connect the other connector of the insulator to the AUX input of your car to get a high resolution sound. - Car charger with two USB ports: This car Bluetooth receiver comes with a dual port USB car charger that allows you to charge your mobile phones, tablets, MP3 players and other devices at any time. - Dual connection: This car Bluetooth adapter can be connected to two Bluetooth devices at the same time, which is convenient for you to easily switch the music and play your favourite music on the two smart devices, reducing the operation for disconnection and reconnection. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09WY6P36X | | Audio Input | 3.5mm AUX port | | Audio Output Mode | Stereo | | Audio Output Type | Bluetooth | | Best Sellers Rank | 37 in Bluetooth Car Kits | | Bluetooth support? | Yes | | Brand | Smof | | Brand Name | Smof | | Colour | black | | Compatibility Options | Car stereo system | | Compatible Devices | Car Stereo System, Home Stereo System, Speaker, Headphone, Smartphone, Tablet, MP3 Player | | Compatible with Vehicle Type | Car | | Connectivity Technology | Bluetooth, USB | | Connectivity technology | Bluetooth, USB | | Connector Type Used on Cable | Auxiliary | | Control Method | Touch | | Control Type | Touch Control | | Controller Type | Touch Control | | Customer Reviews | 4.4 out of 5 stars 695 Reviews | | Data Link Protocol | L2CAP | | Enclosure Material | Plastic | | Hardware Interface | 3.5mm Audio | | Human Interface Input | Microphone | | Includes Remote | No | | Installation Type | Plug and Play | | Item Dimensions L x W x H | 10.2L x 7.9W x 3.3H centimetres | | Item Weight | 0.1 Kilograms | | Manufacturer | Smof | | Material | Plastic | | Media Types | bluetooth | | Number of Channels | 2 | | Number of Ports | 2 | | Outer Material | Plastic | | Power Source | Corded Electric | | Power source | Corded Electric | | Product Features | Bluetooth Receiver,Car Charger | | Product Warranty | 2 Year Limited Warranty | | Product dimensions | 10.2L x 7.9W x 3.3H centimetres | | Rechargeable Battery Included | No | | Special feature | Bluetooth Receiver,Car Charger | | Supported Application | Car stereo system | | Supported Standards | 2.4 GHz Radio Frequency | | UPC | 676351770550 | | Wireless Compability | 2.4 GHz Radio Frequency | ## Product Details - **Brand:** Smof - **Connectivity technology:** Bluetooth - **Material:** Plastic - **Power source:** Corded Electric - **Special feature:** Bluetooth Receiver,Car Charger ## Images ![Bluetooth Car Adapter, AUX Bluetooth Adapter for Car with Ground Loop Noise Isolator for Handsfree Talking and Music Streaming, Wireless Bluetooth Receiver with Dual Port USB Car Charger, Input Port - Image 1](https://m.media-amazon.com/images/I/71aF4ZXHS2L.jpg) ![Bluetooth Car Adapter, AUX Bluetooth Adapter for Car with Ground Loop Noise Isolator for Handsfree Talking and Music Streaming, Wireless Bluetooth Receiver with Dual Port USB Car Charger, Input Port - Image 2](https://m.media-amazon.com/images/I/71H-pVEJKkL.jpg) ![Bluetooth Car Adapter, AUX Bluetooth Adapter for Car with Ground Loop Noise Isolator for Handsfree Talking and Music Streaming, Wireless Bluetooth Receiver with Dual Port USB Car Charger, Input Port - Image 3](https://m.media-amazon.com/images/I/61njBaGVBbL.jpg) ![Bluetooth Car Adapter, AUX Bluetooth Adapter for Car with Ground Loop Noise Isolator for Handsfree Talking and Music Streaming, Wireless Bluetooth Receiver with Dual Port USB Car Charger, Input Port - Image 4](https://m.media-amazon.com/images/I/71p8MRiitpL.jpg) ![Bluetooth Car Adapter, AUX Bluetooth Adapter for Car with Ground Loop Noise Isolator for Handsfree Talking and Music Streaming, Wireless Bluetooth Receiver with Dual Port USB Car Charger, Input Port - Image 5](https://m.media-amazon.com/images/I/61Jhu2NwRgL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: How to use this Aux Bluetooth Adapter?** A: Dear friend,thanks for your question. Firstly charging the receiver with USB port,the blue light indicator flashes quickly;Then link the 3.5mm audio cable jack to the speaker; Pair the receiver to your smart device;finally you can enjoy the music. **Q: Does it have to be turned off? Will it affect my car battery?** A: I’ve never turned it off. It hasn’t had an impact on my car battery. I believe once your car is off no power is being used. **Q: Will the Bluetooth adapter automatically reconnect to my phone the next time I use it?** A: Dear friend ,thank you for your question. This Bluetooth adapter BT4805 will connect to the last paired smart device automatically when turned on next time. (Please make sure the Bluetooth function of your smart device is on before turn on the receiver.) **Q: Does this support multipoint connection? Will it allow me to connect 2 devices at the same time?** A: This from the description! Not sure if this is what you meant. 【Dual connection】The car Bluetooth adapter can be connected to two Bluetooth devices at the same time, which is convenient for you to easily switch and play your favorite music on the two smart devices, reducing the tedious operation of disconnecting and reconnecting. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works well *by L***P on 11 February 2025* Easy to set and connect to phone for listening to audio books and spotify ### ⭐⭐⭐⭐⭐ Pretty impressive and well priced *by D***G on 27 October 2022* I bought this a few weeks ago after becoming frustrated with the third set of leads that I’d bought to connect my iPhone to my car stereo. I use my phone for music and Sat nav fairly regularly, but especially on long journeys, and this has worked great for that. The leads are quite long, so would work well in a van or truck, I’ve cable tied them down to the length I need and tucked them out of sight. The microphone unit has three buttons on it, one to accept and end calls (that also makes the Bluetooth discoverable or reconnect if the blue light is flashing rather than one permanent, to confirm that it is connected), then a back and forward button that allows me to skip tracks playing from my iPhone without scrolling away from my Sat nav app to find the music app. The sound quality with the noise inhibiting thingy seems fine to me, my car stereo isn’t the last word in technical prowess, but the music and voice commands both sound fine. The phone dips the music to allow any voice control to come through before resuming the music again. The one quirk, which others mentioned and I have had issues with, although it is down to my car more than the device is that it doesn’t always automatically connect to my phone every time. My car powers up the power plug as soon as the door opens after being unlocked, so the device does connect automatically then, but the break in power whilst starting the engine disturbs the power supply, so the Bluetooth doesn’t always reconnect afterwards. I have noticed that a little patience and pressing the call answer/end button does reconnect the Bluetooth fine though, and it is definitely a quirk that will confuse any Bluetooth connection a little. Overall it is working much better that the various combos of leads that I have tried before and I whole heartily recommend it! ### ⭐⭐⭐⭐ Impressive *by S***Y on 8 October 2025* Excellent tool, very clear and easy to use. Only moan is the cable is very thin, just have to be careful you don't snag it. ## Frequently Bought Together - Smof Bluetooth Car Adapter, Aux Bluetooth Adapter for Car with Dual Port USB Charger & Ground Loop Noise Isolator, Wireless Audio Receiver with 3.5mm Aux Port, Hands-Free Calls, Dual Connection - CERAKOTE® Ceramic Headlight Restoration Kit – Guaranteed To Last As Long As You Own Your Vehicle – Brings Headlights Back to Like New Condition - No Power Tools Required - 10 Wipe Kit --- ## 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.hk/products/434288798-bluetooth-car-adapter-aux-bluetooth-adapter-for-car-with-ground](https://www.desertcart.hk/products/434288798-bluetooth-car-adapter-aux-bluetooth-adapter-for-car-with-ground) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-06-21*