KAIY Bluetooth 5.3 Receiver for Home Stereo, Optical Low Latency & HD Music Audio Bluetooth to RCA Adapter for Stereo/Speakers/Wired Speakers/Home Audio Music Streaming Stereo System, Support AUX/USB
Condition: New
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Sunday, Nov 16
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Features
- UPGRADE YOUR LEGACY AUDIO SETUP: Bluetooth receivers transform vintage home stereos, car speakers, or old-school receivers into Bluetooth-ready powerhouses! This plug-and-play Bluetooth adapter lets you stream music from your phone, tablet, or laptop to any wired audio system. The Bluetooth audio receiver is perfect for upgrading classic setups without sacrificing nostalgia.
- UNIVERSAL CONNECTIVITY FOR ANY SETUP: 3-in-1 Outputs: RCA/AUX/Optical ports work with 99% of speakers, amplifiers, and projectors. USB Flash Drive Support: Play music audio directly from a USB drive (no Bluetooth needed!). Vintage Stereo Savior: Bluetooth audio adapter breathes new life into old receivers with seamless wireless streaming.
- BLUETOOTH 5.3: Experience 33ft stable connectivity with the latest Bluetooth 5.3. Faster pairing, stronger signals, and zero audio delay. Bluetooth adapter for stereo receiver is perfect for parties, workouts, or relaxing at home without tangled wires.
- IMMERSIVE HIFI STEREO SOUND: Bluetooth adapter for old receiver powered by advanced wireless codecs, enjoy studio-quality audio with crisp highs, deep bass, and zero distortion.
- SMART LCD DISPLAY & EASY CONTROLS: The Bluetooth to aux adapter's intuitive LCD screen shows volume levels, playback mode, and connection status at a glance. Adjust settings directly on the RCA Bluetooth adapter, no need to fumble with your phone mid-song.
- MULTI-ROOM AUDIO MADE SIMPLE: Sync multiple speakers via AUX/RCA/Optical cables for whole-home audio consistency. The Bluetooth receiver for speakers turns your living room, kitchen, and patio into a unified sound system for parties or daily vibes.
- PLUG & PLAY SETUP: Connect to your stereo via RCA/AUX/Optical. Power via Type-C. Pair with your device in seconds, no apps or complicated settings.
- AUTOMATIC RECONNECTION: Once paired, the RCA to Bluetooth transmitter auto-connects to your last device when powered on. Ideal for daily use. Just hit play and enjoy hassle-free music.
- IMPORTANT TO NOTE: No Built-in Battery: Requires constant power (Type-C cable included). Receiver-Only: Works with speakers/amps, not Bluetooth headphones or TVs.
Special Feature: bluetooth adaptor for old stereo, bluetooth receiver 3.5mm, bluetooth receiver for home stereo, bluetooth to rca adapter, convert wired speakers to wireless See more
Brand: KAIY
Connectivity Technology: Auxiliary, Bluetooth, Optical digital, RCA, USB
Power Source: Corded Electric
Material: Metal, Plastic
Product Dimensions: 1.8 x 3 x 3.54 inches
Item Weight: 3.87 ounces
Item model number: C36
Wireless communication technologies: Bluetooth
Connectivity technologies: Auxiliary, Bluetooth, Optical digital, RCA, USB
Special features: bluetooth adaptor for old stereo, bluetooth receiver 3.5mm, bluetooth receiver for home stereo, bluetooth to rca adapter, convert wired speakers to wireless
Other display features: Wireless
Color: Black
Whats in the box: 3.5mm cable, Bluetooth Receiver Adapter, Optical digital audio cable, RCA output cable, Type-C power cable
Manufacturer: Dongguan Jieshengda Intelligent Technology Co., Ltd.
Date First Available: July 19, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Nov 16
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
I bought this bluetooth unit so that I could send Echo Dot audio to my home theater receiver, which doesn’t have a native bluetooth input. It paired easily to the Echo Dot already in my living room, and I connected it to my receiver via the optical cable option, keeping the audio data digital all the way to the receiver. Looks great as it matches up aesthetically to my receiver. I put the unit on a smart outlet so that I could turn it on and off via Alexa voice control, which is handy for times when I don’t need/want more immersive sound, and my home theater receiver is turned off. The Echo Dot automatically toggles back to its internal speaker when the unit is off and connects immediately when the unit powers up. Though the unit has a momentary button for power/track control, it powers up on its own when the smart outlet applies power from shutoff, and the unit remembers the volume setting that it was last set to. The Echo Dot still retains its microphone access. Was very happy about all these things because it makes for a hassle-free, voice-controlled experience. The unit’s sound quality is excellent (expected in keeping an all-digital path via the optical cable connection). Its controls work properly. Audio data is captured and passed on flawlessly. Set it and forget it. The unit is very lightweight. I wouldn’t think it can handle rough treatment well. The kindly-supplied optical cable is stiffer than other optical cables, making its appearance management a little tougher. The supplied USB-C power cable is pretty short. Consider getting a longer one if you need more than a foot or so to power this unit. I have not tried the unit’s USB audio input option. I’m glad I bought this. It was originally an experiment that wound up delivering beautifully and inexpensively. Highly recommend.
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Reviewed in the United States on April 28, 2024 by Rob J. Rob J.
This little, inexpensive device has amazing sound quality. No hiss, hum, or buzz. When I play music from my iPhone via Bluetooth, with the KAIY receiver connected to a line input on my stereo receiver, the audio quality is exactly the same as a wired connection between my iPhone and my receiver! Bonus feature: The power supply for the KAIY is connected to a switched outlet on my receiver, so electricity is not wasted when I'm not using it. When I power on the receiver, the KAIY comes up remembering all settings, and pairs with my phone instantly.
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Reviewed in the United States on February 17, 2025 by Tpines
I rolled the dice on this device on the cheap. Needed to purchase a usb phone charging brick in order to power it up with the included USB to USB C cable. I should have read all the way to the end of the product description. The price of quality lives on long after the joy of a “bargain” fades. Update: At this point the bargain device is still shining brightly. Customer service for this company is quite good. My device is set up and working well using the optical connection. RCA and mini plug cables are included for input use. This is a very versatile device. The Bluetooth range seems decent. The sound quality seems better than FM radio. I plugged my (separately purchased) phone charger into a switched outlet on my amp so the unit only runs when I need it. I believe a short setup video might help this product sell even more! Enjoying this product from KAIY.
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Reviewed in the United States on January 29, 2025 by JSH
Works great! Exceeded my expectations. My Bluetooth devices connect flawlessly and great sound quality. Had to try different audio inputs on my older Sony Receiver until finding the MD/TAPE worked. The type C power cord that came with unit was too short to reach any power source. I supplied a longer type C power cord and usb AC outlet plug.
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Reviewed in the United States on March 16, 2025 by James E Mitchell
Can't speak to longevity as I've had this device for only a week. It works as advertised, easy to install and use. I'm pleased with the purchase and would recommend.
Reviewed in the United States on March 25, 2025 by Russell Powell
I bought this product to add Bluetooth functionality to my existing HiFi Audio Amplifier, but the AUX output of the KAIY Bluetooth receiver never worked. This is an example that the Quality Assurance at these minor Chinese manufacturers is generally very poor because the company - and others like them - seems quite happy to ship faulty units. Thankfully the L/R RCA outputs did work, so I did manage to add Bluetooth to my sound system, but the audio quality could have been better. Given that the unit is not expensive, I suppose it's a case of getting what you pay for One annoying feature of the unit is that it "shouts" at full volume over my amplifier's loudspeakers that a Bluetooth connection is missing when you are 10 seconds too slow at switching on the Bluetooth transmission on your smart phone. I hope that this "feature" is removed from their subsequent models, because the unit's flashing "BT" display is more than adequate to indicate that a Bluetooth connection still needs to be established. It would also be nice if the unit would remember it's last output volume setting after it has been switched off. Given that the unit's AUX output never worked is the main reason why I will not buy anything from this company again. They have to take Quality Assurance seriously or they will lose customers.
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Reviewed in the United States on November 30, 2024 by Peter