KZ S1D Dynamic Driver TWS Bluetooth 5.0 Wireless Earphones with Smart Touch, Noise Cancelling (White)

Although the design is sleek and compact and the sound quality is very good when they work, I think the signal quality between the two components is terrible. I tested these out, fully charged, sitting at a desk with my phone on the desk 1.5' away and sitting perfectly still. The sound constantly "jittered"; it was like an interference or latency problem between the two devices. It was terrible! Also. The part that goes into your ear canal is a little too large because even with the smallest rubber fittings on it was too tight to fit in my ear canal and that has NEVER been a problem for me. I normally use the medium and large fittings on my ear buds.These were a terrible investment! I asked for a return and I received a shipping label directly to China, so now I have to deal with seeing if they have a local USA return shipping location.UPDATE: The seller wanted me to pay for return shipping to CHINA!! because they don't have a place to ship in the U.S. That would cost just as much or more than the product itself. I decided to keep them, but I am a very dissatisfied customer. Best not to even purchase these and risk it because you will be out money regardless.

I like KZ and thought I'd give this a try. the sound and bass are ok for tws. you do get some cut off and muffled sound at times. Game mode is ok, you can hear a slight difference. The build is light and plasticky but it's only $30. Battery life did not last for 4 hrs, more like 2 and a half 3 for me. Charging time isn't that long. Standby time isn't great. they're ok for the money. Does as is described. 3 and a half stars for this tws. I see potential but it's not there for bluetooth just yet.