10 Best Bluetooth Transmitters 2025 in the United States

The Twelve South AirFly SE is a handy Bluetooth transmitter for those looking to use wireless headphones with devices that only have a 3.5mm audio jack, such as airplane entertainment systems or gym equipment. It supports Bluetooth, allowing you to connect it to AirPods or other wireless headphones with ease.

One of its standout features is the impressive battery life, offering over 20 hours of usage on a single charge, which is ideal for long trips. Moreover, it can still function while charging, so you never need to worry about running out of power during use. The device is lightweight and compact, making it easy to carry around. It includes quick pairing mode for effortless connection, enhancing user convenience.

It supports dual pairing, allowing two headphones to connect simultaneously, which is great for sharing audio. The AirFly SE is excellent for travelers and gym-goers looking for wireless freedom and reliable battery life.

The Avantree Relay is a Bluetooth 5.3 transmitter designed for use with various audio devices, including planes and TVs. It supports the aptX-Adaptive audio codec, ensuring high-quality audio transmission when paired with compatible headphones. A standout feature is its ability to connect to two devices simultaneously, allowing two users to enjoy audio from the same source. This is particularly useful during flights or shared TV viewing.

The device boasts an impressive battery life of up to 20 hours, making it suitable for long-haul travels without the need for frequent recharging. The inclusion of a dual 3.5mm adapter enhances its compatibility with different types of audio jacks, making it versatile across various environments. Additionally, the built-in controls and LED indicators make it user-friendly, offering easy operation for volume adjustments and monitoring battery levels.

Weighing just 4.5 ounces, it’s portable and convenient for travel. The Avantree Relay excels in providing a reliable and high-quality Bluetooth audio solution, especially for travel, with the added benefit of dual headphone connectivity and long battery life.

The 2024 Upgraded Pro Airplane Bluetooth 5.4 Transmitter boasts several impressive features that make it a strong contender in its category. Its use of the latest Bluetooth 5.4 technology ensures robust and reliable connections. The support for aptX-Adaptive and aptX-Low Latency codecs is particularly beneficial for those looking to enjoy high-quality audio with minimal lag, making it ideal for activities like watching videos or playing games.

The transmitter's wide compatibility is another plus, as it can connect to a variety of devices, including aircraft entertainment systems, TVs, iPads, and gym equipment with a 3.5mm jack or AUX output. This versatility means it can fit seamlessly into different environments, from airplanes to home setups and gyms. The device also supports dual pairing, allowing two headphones to connect simultaneously, which is great for sharing audio experiences with a friend or partner.

The battery life is another standout feature, offering up to 26 hours of use on a full charge, and a quick 2-hour recharge time ensures minimal downtime. The metal frame adds a touch of elegance and durability, making it a stylish addition to any tech setup. However, there are a few limitations to consider. The transmitter lacks receiving capabilities, meaning it can't be used to receive audio signals, which limits its use in certain scenarios like in vehicles. Additionally, while the device is battery-powered and includes an indicator light for easy monitoring, some users might prefer the option of continuous power via a wired connection. Despite these minor drawbacks, this Bluetooth transmitter is a solid choice for anyone needing a versatile, high-quality audio solution, particularly frequent travelers, gym-goers, and home entertainment enthusiasts.