Review on 🎧 FiiO BTR3K: Bluetooth 5.0 Receiver/Headphone Amp with Hi-Res Audio, Dual AK4377A DAC, aptX HD/aptX LL/LDAC Support - Ideal for Home TV, Speaker, Car Stereo - Type C Port (3.5mm Unbalanced & 2.5mm Balanced Output) by Walter Day

This little DAC/amp costs a lot per dollar. I was very pleased with the apparent improvement in sound quality. I mainly use it when streaming music to my phone, the difference is noticeable. Structurally, it is a small device with a solid construction. It's like quality when you hold it. I'm serious about the small part. The thing is about the size of a USB stick, maybe a little smaller. Good thing it comes with a clipped dodead. The phone app is pretty much useless to me, but that doesn't matter. You don't need him for anything. There is a firmware update on their website. It was easy to find, had clear instructions, and was easy to install. I recommend it and appreciate the long term firmware support. The most shocking improvement is actually with my old cheap Cowin headphones. It uses sbc where the BTR3K connects to the source via aptx and then connects to the headphones. Sounds a lot better. Be sure to try some before and after comparisons of the same song. That's great. So yes, even if you have cheap headphones, it's a worthwhile investment. Having good headphones helps them shine. I love it. I unconditionally recommend the product and plan to buy from this brand in the future.