RazerHammerhead HyperSpeed - Wireless Multi-Platform Gaming Earbuds for PlayStation (HyperSpeed Wireless, Active Noise Cancellation, Bluetooth 5.2, Up to 30 Hours of Battery Life) White

It arrived in perfect new condition factory sealed etc.Opened, read the instructions, charged using original usb cable provided in the box. I connected them to my PC's motherboard ROG ASUS Z490 usb to charge as instructed by manufacturer. After charging I tried to connect them to my phone Samsung Galaxy S21 5G as it does not have audio jack slot - that is direct reason I got them. I normally use BOSE NC700 with my phone but I wanted in-ear ones. They (Razer) PAIRED flawlessly but only LEFT one played sound and was lit GREEN but the RIGHT one didnt work at all and LIGHT didnt come on at all. I tried EVERYTHING from RAZER website problem solving help - charging again and again, factory reset, turning each bud on, PAIRING to each other - nothing worked. Half a day later somehow it turned itself on and paired and worked also on my WINDOWS10 - bluetooth from motherboard via antena. No problems - great sound and all that but for like a half song.After listening to ALMOST ONE song on my phone (I used RAZER APP) the battery on the RIGHT EARBUD dropped to 28% and after next few seconds my phone informed me about battery status is BELOW 10% and another few seconds later turned itself OFF. LEFT one kept playing music with no issues. I thought I didnt charge them properly which was weird because LEFT was always on 100% and it didnt drop but they were charged together. I tried charging OVERNIGHT - no help. Again and again tried 4hrs charge. Isseu perssists. Battery on the RIGHT earbud kept showing the same battery problem - sometimes after pairing it showed 78%, 52% or 67% (RANDOM) for only half a song again and again and kept dropping to less than 10% and turning OFF in less than 3-5 minutes, LEFT one was always 100%.It seems that the problematic earbud will ONLY charge itself to maybe 2-3% and lasts about half/one song informs me that its LOW BATTERY and turns itself off. SO it DOES charge a bit but NEVER fully no matter how long I will keep charging it. I even tried to ONLY charge that RIGHT EARBUD on its own in a case - no help.Returning them today and ordered ANOTHER pair. I will post to update if the NEW pair works.Update a day later: NEW PAIR works PERFECTLY. Not only that but they are advertised that you can turn on GAMING MODE to have low latency but YOU DONT NEED THAT because on my Windows10 or my phone S21 they have NO DELEAY and I dont know but they PERFECT. I thought at first the GAMING MODE is on by default but no - I tested them with tape measure and went away from computer/phone 6m, 7m then 8m - 10 METERS and they WORK - no delay. There is just no way they are that good. I recomend it.

FYA READ THIS BEFORE BUYING!First of all, I must admit that I was expecting value for the price. Disregarding most of the reviews I saw on Amazon about Razer Hammerhead, I really really wanted to give them a chance and you know prove everybody's wrong.Oh boy how wrong I was...Let's start with the look and exteriors. Headphones look great, I can't say a word about it you will be satisfied in almost every aspect from the precision of the earphones and the box containing them with usual Razer stickers etc. Everything looks professional except the docking station of the earphones itself. As many on reviews say, it does feel cheap, because the plastic bit that closes that docking stations is not very firm, so feels like a cheap piece of plastic. Unfortunate, but I was willing to disregard that nevertheless and focus on the quality of the sound.The next step was complicated and not intuitive Razer earphones commands. Despite what instructions say, I had problems learning the commands. Eventually got used to them but earphones mistake simple touch with pausing the music for example or switching to other options like gaming mode. I still didn't learn how to turn them off without putting them into the box when they switch off automatically.Sound is ok but definitely not what I was expecting. If that's the quality that Razer gives for wireless headphones. I am not buying Razer Nari Ultimate. I was disappointed big time, don't get me wrong. It was loud as hell, but the quality left a lot to desire. Especially when I was using Discord and game with friends. So I heard clearly what they were saying but not concisely, I talked with them but the game was like background noise which was disappointing. I tried everything in the options of the game and Discord to no avail. But I bought them for the gym and to be honest, I said fair enough but still pretty disappointed.I admit that they stay connected for many meters to be honest over 10, despite I read otherwise BUT when I am outside and put my Razer Phone 2 into my pocket and listen to audiobook or anything on YT, they have an intermittent connection. What do I mean? I mean that when I listen to something, it cuts every 3 or 4th word. It is annoying because you have to keep you phone in your hand instead. I didn't experience that in the gym when I put my phone on the ground, which was very weird and disappointing for earphones that cost 100£.Earphones were pretty comfortable in my ear, even when I was very sweaty in the gym, however, the silicon nonslip cushion barely fit the earphones, as a matter of fact. When I put them on the earphones and then occasionally took earphones out of my ears, that silicon bit got stuck in my ear and had to reapply them frequently so they do not stick together. I do not put them anymore, waste of time and it earphones are not comfy with them. Good that earphones do not slip without them when I run. So that's a win in a loss.Overall, I don't think I would buy them again, I respect Razer products and I like the brand but if they keep making overpriced products without putting quality in them, I will definitely not buy their products anymore. Wish me luck as I am buying their gaming headphones and wireless mouse. If those result to be garbage, then no more Razer for me. Not worth the money for the quality of the product I am getting.PS. Edit from 2 stars to 1 after my first set stopped charging and second replacement, one of the earphones stopped completely working. Quite frankly, I am done with Razer Hammerhead, I cannot understand how 100£ earhpones are crappier than my 20£ - 5 years old earphones...