By Isabella BishopQuick answer
Our overall pick is the Twelve South AirFly Pro 2 Deluxe for its dual-headphone pairing and long battery life. The standard AirFly Pro 2 is a great alternative with similar features, while the AirFly SE suits those looking for a simpler, more compact option. For drivers, the Scosche model adds FM transmission and in-car charging.
Finding the right Bluetooth transmitter can free you from wires on flights, at the gym, or in your car. The best Bluetooth transmitters convert audio from devices with a 3.5mm jack into a wireless signal for your headphones or speakers. We compared manufacturer listings to find options that excel in different situations, from sharing a movie on a plane to upgrading an older car stereo.
Quick picks
- Best for sharing audio: Twelve South AirFly Pro 2 Deluxe (see on Amazon)
- Best compact dual-pairing: Twelve South AirFly Pro 2 (see on Amazon)
- Best for older cars: Scosche BTFM9 FM Transmitter (see on Amazon)
Best Bluetooth Transmitters compared
| # | Product | Best for | Bluetooth Version | Battery Life | Transmitter/Receiver Mode |
|---|---|---|---|---|---|
| 1 | Twelve South AirFly Pro 2 Deluxe | Best overall for dual pairing and travel | Bluetooth 5.3 | Over 25 hours | Both |
| 2 | Twelve South AirFly Pro 2 | Best compact dual-pairing transmitter | Bluetooth 5.3 | Over 25 hours | Both |
| 3 | Twelve South AirFly SE | Best for basic, extended-use wireless audio | Not listed | Over 20 hours | Both |
| 4 | Scosche BTFM9 FM Transmitter | Best for adding Bluetooth and charging to a car | Not listed | Unlimited (plugs into 12V socket) | Transmitter |
How we chose
We compared manufacturer listings and specifications on Amazon as of November 2026. We did not test these products hands-on. Our selections are based on comparing listed features like Bluetooth version, battery life, dual-pairing capability, and whether a device functions as both a transmitter and receiver.
Best Bluetooth Transmitters: our picks in detail
1. Best overall for dual pairing and travel: Twelve South AirFly Pro 2 Deluxe
Pros
- Functions as both a Bluetooth transmitter and receiver.
- Can pair two sets of headphones at once.
- Listed battery life of over 25 hours.
- Supports Bluetooth 5.3 and aptX HD Adaptive.
Cons
- The listing does not mention water or sweat resistance.
- Requires a 3.5mm audio jack source.
The Twelve South AirFly Pro 2 Deluxe is a versatile Bluetooth 5.3 adapter that works as both a transmitter and a receiver. It can connect two sets of Bluetooth headphones simultaneously, which is ideal for sharing in-flight entertainment or music. It supports aptX HD Adaptive for audio quality and is listed with over 25 hours of battery life.
This model is designed to connect to any device with a 3.5mm headphone jack, such as airplane seatback screens, gym TVs, or gaming consoles. It has quick-access buttons for volume control and muting. The listing notes it is small enough to fit in a tech pouch or carry-on pocket.
Best for: Travelers and anyone who wants to share audio wirelessly from a single source.
2. Best compact dual-pairing transmitter: Twelve South AirFly Pro 2
Pros
- Dual headphone pairing capability.
- Works as a transmitter or receiver.
- Long listed battery life.
- Compact size.
Cons
- The listing does not mention if it includes a carrying case.
- Relies on a 3.5mm connection.
The Twelve South AirFly Pro 2 is a Bluetooth 5.3 adapter that can transmit or receive audio via a 3.5mm jack. Like the Deluxe model, it supports dual pairing for two sets of wireless headphones. It also features aptX HD Adaptive support and is listed with a battery life of over 25 hours.
This adapter is designed for use with airplane entertainment systems, car AUX ports, treadmills, and TVs. It has dedicated pairing buttons for a second headset and quick-access controls for sound. According to the listing, it skips a display to maximize battery efficiency.
Best for: Users who want the core dual-pairing feature in a compact form factor.
3. Best for basic, extended-use wireless audio: Twelve South AirFly SE
Pros
- Can be used while charging.
- Listed battery life of over 20 hours.
- Compact and lightweight design.
- Functions as both transmitter and receiver.
Cons
- The listing does not mention dual-headphone pairing.
- Does not list support for aptX or other high-quality codecs.
The Twelve South AirFly SE is a simpler Bluetooth adapter that transmits and receives audio. It is listed with a battery life of over 20 hours and can be used while charging via its included USB-C cable. It has built-in buttons for volume control.
This model is designed to provide wireless audio from in-flight entertainment, gym equipment, and devices with a 3.5mm jack. The listing describes it as lightweight, compact, and portable. It pairs with AirPods, earbuds, and wireless headphones.
Best for: Users who need a straightforward, long-lasting wireless audio solution without dual pairing.
4. Best for adding Bluetooth and charging to a car: Scosche BTFM9 FM Transmitter
Pros
- Adds Bluetooth and hands-free calling to cars.
- Includes dual USB-A and USB-C charging ports.
- Comes with a 3-year limited warranty.
- Supports voice commands.
Cons
- Audio quality depends on finding a clear FM frequency.
- Designed specifically for 12V car sockets, limiting other uses.
The Scosche BTFM9 is an FM Bluetooth transmitter designed for cars. It plugs into a 12V cigarette lighter socket and transmits audio from your phone to your car’s FM radio. It also functions as a hands-free kit for calls with support for Siri and Google Assistant voice commands.
This device includes dual 12W USB-A and USB-C charging ports to power devices on the go. It has controls for volume, play/pause, and answering calls. The listing states it comes with a 3-year limited warranty and works with devices that have a 3.5mm aux port or Bluetooth.
Best for: Drivers with older car stereos who want to add wireless audio, hands-free calling, and device charging.
How to choose the best Bluetooth transmitter
Bluetooth transmitters bridge the gap between wired audio sources and your wireless headphones or speakers. The right choice depends on where and how you plan to use it. For more on general connectivity issues, see our guide on troubleshooting.
What to look for
- Transmitter vs. Receiver Mode: Many adapters work both ways. Transmitter mode sends audio from a device (like a plane screen) to your headphones. Receiver mode lets you send audio from your phone to a wired system (like a car stereo).
- Dual Pairing: Some transmitters can connect to two sets of Bluetooth headphones at once, which is perfect for shared listening on trips.
- Power Source: Portable models have a built-in battery, while car-focused models often plug into a 12V socket for power and can charge your devices.
- Connection Type: Most universal transmitters use a 3.5mm audio jack. For cars, an FM transmitter broadcasts over a radio frequency, which can be susceptible to interference.
Consider your primary use case. If you travel frequently, battery life and dual pairing are key features. For car use, look for an FM transmitter with charging ports and hands-free calling. If you experience audio issues like stuttering, our article on fixing Bluetooth audio stuttering may help.
FAQ
What’s the difference between a Bluetooth transmitter and receiver?
A Bluetooth transmitter takes audio from a source (like a TV’s headphone jack) and sends it wirelessly to your headphones. A Bluetooth receiver does the opposite: it takes a wireless signal from your phone and outputs it to a wired speaker or car stereo via a 3.5mm cable. Many of the adapters we looked at can switch between both modes.
Can I use any Bluetooth transmitter on an airplane?
Most portable transmitters with a 3.5mm plug are designed for this purpose, but you should always follow the airline’s specific rules for electronic devices. For more on traveling with electronics, you can check the FAA and TSA websites.
Why does my car’s FM transmitter have static?
FM transmitters broadcast on a specific radio frequency. If a local radio station is using that same frequency, it will cause static or interference. The solution is to find an unused frequency on your car’s radio dial and set the transmitter to match it. For other wireless issues, see our guide on fixing Bluetooth, Wi-Fi, and charging problems.
Do Bluetooth transmitters cause audio lag?
Some latency (a slight delay between video and audio) can occur with any wireless transmission. Models that support low-latency Bluetooth codecs, like aptX Adaptive listed in some products above, can help minimize this lag, which is especially important for watching videos or gaming.
References
- Amazon product listings and manufacturer specifications (accessed November 2026)
- Bluetooth Technology Website
About Isabella Bishop
Isabella writes about consumer tech how-to & troubleshooting. Each guide starts with research into how products are built and what owners report after months of use, and is revised when better options appear.
