blafili T6.35 Bluetooth Transmitter

The Blafili T6.35 Bluetooth Transmitter is an interesting piece of tech. It's a rather large item, measuring roughly 5.5 X 1 X 1 inches. Like most professional sound equipment, it's built to be durable. And you can tell that just from the look and feel of it. It's also meant to be simple to use, as the only two buttons on it are "Power" and "Pair". Though you can also cycle through Bluetooth codecs by double-tapping the "Power" button.

At the top end is a USB-C charging port/audio input, and at the bottom is a gold-plated 1/4 inch plug, which lets you plug it right into a standard sound board. Admittedly, it's been well over a decade since I ran a large soundboard (and Bluetooth devices of any sort were a rarity when I was running sound). I essentially got this transmitter, hoping I might be able to use it on my home audiophile-quality system, as I've had several consumer-grade Bluetooth adapters die all too soon, and the $45 for a professional-grade transmitter seemed more than fair. But that's where it gets weird.

The manual makes this sound like a monophonic device, because it gives detailed instructions for connecting single Bluetooth speakers, one at a time, and even mentions that it's not a "True Wireless Stereo" signal between the two speakers. But apparently, it should specify speaker sets, as it seems to be built to stream a Bluetooth connection to two different speaker sets in different rooms at an event. Its signal output is definitely stereo though. I substituted Bluetooth headphones for speakers, and Switchblade Symphony's "Wallflower" came through in all its glorious stereo sound (great song to test stereo effect).

Because I'm in the middle of a move, I haven't been able to use the transmitter on anything other than my headphone amp, so I can't attest to its usefulness on a more powerful amplifier. However, I could tell my little amp wasn't enough to power the 1/4 in input. When I tried, it barely made a squeak, and was full of noise (Not the transmitter's fault! It's made for a much more powerful input.). But a direct USB-C connection to my phone worked fine.

I haven't used it enough yet to be able to testify to the battery life, but I noticed that the manual estimates about 16 hours (depending upon use conditions).

I picked this up mainly as a compact way to send audio from a small mixer to Bluetooth speakers, and for that kind of job it works quite well. Pairing was straightforward, and it connected without much fuss to the speakers I tested. It’s compact enough to keep in a gig bag, and the battery life seems good for portable use.

I also tried it with a few other pieces of gear just to see where it works best. For music playback from a mixer or similar line-level source, it does the job nicely. For instruments like guitar or keyboard where timing matters more, there is still some Bluetooth delay, so I would not rely on it for live monitoring or performance output. That is not really what this device is for anyway.

Build quality feels solid, and the overall idea is very practical if you need a quick wireless link for background music, small events, or temporary PA setups. Just make sure you understand that this is better suited for sending audio from mixers and similar gear to Bluetooth speakers, not for turning an electric guitar into a wireless instrument system.

This is a very useful Bluetooth transmitter if you want to send audio from a mixer or 1/4" output device to Bluetooth speakers or receivers. I tested it with a small PA setup and it paired quickly. The sound is clean, and the battery life is good for long practice sessions or events. It is best for music playback or background audio, not for live vocals where latency matters, but for wireless music streaming it works very well.

This is a neat tool to have in your bag. It pairs quickly and easily to any speaker. I've connected it to both my Positive Grid amp and my w-king bluetooth speaker and it connected quickly and easily. I suspected it wouldn't work with my guitar but I plugged it in anyway and confirmed it doesn't work without some kind of preamp. I used it on a keyboard just to see how responsive it is and it worked though there is enough of a delay that you wouldn't want that to be your output. It works fine going from my mixing board to bluetooth speakers which is one of its intended purposes and it works well for music playback. It's small, well-built and has a decent built-in battery for use on the go. I'll add it to my bag and it'll be a tool I can use to link PA systems for stuff with scouts or baseball.

Keep in mind, this will not make your guitars cordless, you are looking at the wrong tool for that.

The blafili T6.35 Bluetooth Transmitter is a practical solution for adding wireless capability to mixers and PA systems. The battery life is strong, easily lasting through long sessions, and the connection remains stable within a reasonable range. While there is a slight latency depending on the paired speakers, it works well for general playback in mobile or rehearsal rigs.

I use this device in my recording studio to send Bluetooth from my synthesizers to my mixing board. It works perfectly. Latency is negligible and seldom requires charging, the battery charge seems to last forever. Very simple to pair with other devices, and simple to set up. It’s a perfect way to get rid of pesky cables. Highly recommened.

The T6.35 1/4" Bluetooth Audio Transmitter is a very useful device for mixers and PA systems. Battery life is impressive—I can easily get long hours of continuous use without worrying about recharging. The connection is generally stable with minimal dropouts when used within a reasonable range.

The only downside I’ve noticed is that there can be a slight delay depending on the speakers used, and the range isn’t perfect in crowded or interference-heavy environments.