TUNAI Square Portable Bluetooth 5.0 Receiver Adapter/USB DAC/Headphone Amp with aptX, aptX low latency, AAC, External Cirrus Logic DAC, Low Noise Floor, Cord Management, Built-in Microphone

A really useful little gadget this. I use it with my Bose wired ANR headphones and the wireless versatility it provides is great. Sound quality is surprisingly good, battery life long enough (works fine on a 7hr flight) and the case design that allows you to neatly wind away excess cable is nice feature. A sturdy metal clip allows you to secure the whole thing to you clothing if you’re out and about. When it comes to Bluetooth/pairing etc, it’s straightforward and reliable. All in all, this gets a big “thumbs up”!

It does the job, but the audio quality isn’t as good as a wired connection via a decent DAC.

Disconnected on numerous occasions while attached to my shirt.Poor for phone calls. Poor battery

I was really happy to find a bluetooth adapter that would work with my laptop and my iPhone which makes it very practical for using during meetings. I also really like that you can fold your cables around it. It is super useful for commute. I cannot think about going back to having wired headphones around anymore. Highly recommend!

I recently bought a new Galaxy phone and didn’t realise that it didn’t have a headphone jack! I was a bit annoyed with myself for not noticing this and then remembered that I had this little gadget hanging about the house. After a quick search I had found it and then was trying to remember how to pair it … a few minutes later and I now have a way to use earphones/headphones with my new phone. The cable storage is a great feature and the built-in clip means you can attach to your clothes or a bag though it isn’t the most secure.

This is a handy wee gadget which I have used with my phone and laptop; it is quite simple to use and the battery life, so far, seems to be fairly good, used it all day at work and it hadn't ran out by the time I got home (around 6 hours)

I have been used wired DACs for years and wanted to look at a wireless one for ease.I have headphones that struggle with standard headphone jack power and need a DAC to drive them. I thought this would be the best of both worlds.....I was wrong.Multiple headphones, with multiple tests, I found that the standard 3.5mm jack sounded far better than anything on this unit. I got interference on all headphones, volume was low and the sound stage was WAY too wide. To the point of where everything sounded distant. The headphone jack was better and provided a much more balanced sound.Yes this does work for turning headphones wireless, but if you have a set of high end headphones, this will ruin the sound quality.On the plus side the pairing was easy and the controls work well, there was no noticeable latency and the battery life is pretty good but for this price you could just get a standard bluetooth converter for cheaper headphones, or even bluetooth headphones as the DAC is a waste of time and you can get better sounding headphones for this price.

Purchase together with TUNAI DRUM, and worked extremely well.Sound is slightly better than connecting my DRUM directly to the phone, amazing.No hissing sound, which has always been an annoying problem for me.The cord management is really useful.I'll recommend this product to everyone.