TUNAI Firefly Bluetooth Receiver: World’s Smallest Wireless Audio Bluetooth 4.2 Adapter with 3.5mm AUX for Car/Home Stereo Music Streaming;

Gadget: TUNAI Firefly Bluetooth Receiver: World’s Smallest Wireless Audio Bluetooth 4.2 Adapter with 3.5mm AUX for Car/Home Stereo Music Streaming;

Price: $34.99
(as of Feb 09,2020 17:11:41 UTC – Details)

Product Description


enjoy musicenjoy music

Don’t settle for subpar sound quality!

Transform your home and car audio system with Firefly, the world’s tiniest Bluetooth music receiver. Stream crisp, high-quality music from your smartphone or tablet with patented technology that supports multiple codecs, including AAC. The Firefly is the ideal accessory for iOS and Android users.

Most Bluetooth receivers only support the default low quality SBC codec, which is less than ideal for music streaming. The Firefly is one of the few receivers on the market that includes support for the higher sound quality AAC and MP3 codecs through its patented Sound Revitalization Technology.

iOS devices, as well as a few others, implement AAC over Bluetooth, making the Firefly a must have for iPhone and iPad users who want to get the most out of their speakers and car audio systems.

works right out of the boxworks right out of the box

Quick connection and easy pairing!

Simply plug Firefly into your audio system and USB power source.

You can pair your smart device with Firefly on the Bluetooth Setting. Its LED light glows like a Firefly so you always know the connection status.

auto on

auto on

no charging

no charging

sharing with two device

sharing with two device

Firefly remembers up to 8 paired devices! It will auto-connect to the last device used as soon as you start your engine or turn on your home audio system.

Never worry about forgetting to charge your Bluetooth receiver again! Unlike many Bluetooth receivers on the market that require charging, Firefly works as soon as you turn on your engine or your home audio system. It’s charged directly through the USB port while it plays.

TWO devices can be actively connected with Firefly at the same time so you can play music from either device. Simply pause the first device and play from the second – it’s that easy. No disconnection required!

wide compatibilitywide compatibility

Designed to provide wireless audio solutions for Aux-in Ports.

Upgrade your car or wired home stereo by instantly transforming them into a Bluetooth-equipped system. Firefly is widely compatible with most car and home stereo systems.

What’s in the box?

Firefly Bluetooth receiver (USB car charger not included), 3.5mm AUX extension cord (60cm / 23.6″)
Firefly Bluetooth receiver, AUX to AV/RCA convert cable (1m / 39.4”)
Firefly Bluetooth receiver, 3.5mm AUX extension cord (60cm / 23.6″), AUX to AV/RCA convert cable (1m / 39.4”)

Key Spec

Bluetooth 4.2

Profile support – A2DP

Audio Codec Support – AAC, MP3, SBC

Operation Range – 10m / 33ft

Device connection – remember up to 8, can connect to 2 devices at the same time

Input Voltage – DC 5V

Cable material – Pure Copper + Gold plated connector

Dimension: 1.4cm x 4.2cm x 0.6cm; Weight: 10g


How can I improve the sound quality if it seems distorted (muddy or staticy), especially on loud bass?

Turn down the volume on your phone, and up on the car stereo. This should improve the sound.

I hear a noise when no music is playing, like a whine or hum. Is there a solution?

This is caused by a ground loop in the car’s electrical system. Please contact TUNAI for help, or use a ground loop isolator to suppress the sound.

What do I do if the Firefly seems to be getting hot?

Overheating is a sign that the USB charger or port is unstable and exceeding 5V—please check your USB charger.

Sometimes the Firefly doesn’t reconnect to the phone. What can I do?

‘Forget’ all devices from your phone’s Bluetooth menu, restart the phone, and pair with the Firefly again. If you’re still having trouble, please contact TUNAI.

The USB port doesn’t seem able to power the Firefly. Is there a solution?

The Firefly takes very little power (~20mW), causing some car USB ports to be unable to detect the Firefly and shut off power. Select models of Mini Cooper and BMW are known to have this issue. Switching to a USB cigarette adapter will solve the problem.

Can I take calls with Firefly?

No. If you need to take calls, please check out the Firefly Chat.

My question isn’t answered here.

Please contact TUNAI or the Amazon. We’re friendly and here to help!

GREAT SOUND QUALITY: We promise crystal clear AAC/MP3 sound quality or your money back! And NO annoying voice prompts telling you your device is connected.
AUTOMATICALLY RECONNECT & DUAL CONNECTION: Remembers up to 8 paired devices so you can connect as soon as Bluetooth is switched on – auto-connects to the last device used.
DUAL CONNECTION SEAMLESS SHARING: Can pair up to 2 devices at the same time to make music sharing even easier.
CONVENIENT COMPACT DESIGN: Keep your audio system looking sleek thanks to its compact and stylish design. (USB charger not included)