Optoma NuForce BE Free8 Truly Wireless Premium Earphones with 16h battery life, AAC+aptX, SpinFit ear tips and charging case

I just received it yesterday. I had been trying with different devices for hours, I found there are way too many flaw with this Bluetooth wireless earbuds. I just simply do not see a reason and the market position of this earbuds. Not to mention if you paid so much money for such earbuds, you will expect some good sound quality out of it. This is not the case here.I test it with following devices: Samsung S8+ / Samsung S9 / Avantree Oasis Plus / Sony Xperia XZ2 / INTEL WIRELESS-AC 9260(Desktop)1. Overall sound quality - this earbuds sound quality is classic example of cheap earbuds (like the one you get from dollar store). The full frequency respond is very mess up and is made to sound V-shaped. Worst part is 500 Hz to 3400 Hz is all over the place which driving me nuts. Maybe it really just designed for "work out while listening to random music which you do not really care about sound quality"?2. Background noise - there is very high background noise (hiss/static noise) when it's simply turn on with no sound playing. The higher volume you have set, the worst it will get. When music is playing, this background noise will become highly distracted if you listening to music with high dynamic range (Music became very muddy and filling with random noise).3. APTX LL(?) - One of the reason why I bought this because it support APTX LL - however, I tried on Avantree Oasis Plus (which fully support APTX LL) and I notice APTX-LL just doesn't work no matter how I adjust the setting.4. Build quality - Overall build quality just feel bad, highly reflective plastic on the case and earbuds which like a fingerprint magnet. Maybe it's good for showing off your fingerprint to others?5. NFMI connection issue - Near-Field Magnetic Induction technology (NFMI) range is very limit(google result told me is about 20cm), my head is larger than average person, so I notice right side is easily cutting randomly(Left side is the master - apparently). I asked my coworker who has smaller head to try it out for about 20 minutes, the connection is a bit more stable, but it still frequently cutting off for the right side6. Bluetooth connection issue - as you can see above, I tried it on different devices with fully support Bluetooth 4.0 to Bluetooth 5(Even with APTX LL), the connection drop issue is very annoying. For user very sensitive sound latency, stable and quality, this earbuds is highly not recommended.I purchased many different Bluetooth earbuds from Amazon this year, but this is one of the most disappointed Bluetooth wireless earbuds.

It's the only true wireless aptx LL ear buds on Amazon. However the sound quality is bad. The beep volume is very very loud but the sound is low so as you turn up the volume the beep hurts your ears so bad while the actual sounds are still low. I didn't get any extra ear buds tips in the box so that's no good. The rest buds tips that came with the device is too small So I used a high end ear buds tips I had from my other ear buds to replace the better ones. It improves the asking quality much more. But still I don't know why the beep sound had to be so much louder than the actual device sound.

Expensive even for what it is. Thin sound, poor battery, poor connection. Why does this exist?

Great sound but the white noise when you start an app can be distracting. other than that it's an awesome pair of truly wireless earbuds

完全ワイヤレスの低遅延イヤホンを探していて本品にたどり着くも、果たして1万円の価値があったのだろうかと疑問に感じる。メリット・完全ワイヤレスのAPT-X LL対応イヤホンであるデメリット・30秒～2分のペースでプツプツと不定期に音が途切れ、途切れるたびに音の遅延が変動しAPT-X LLの低遅延というメリットを打ち消している・無音状態のみならず、音楽を聞いているときでも無視できないレベルのホワイトノイズが常時鳴り続ける・古い機種ゆえ仕方ないが、イヤホン自体に音量調節機能がないため音量はBluetooth送信側に完全依存・装着中に左側のイヤホンを軽く動かすだけでも内部のパーツかなにかの金属音がｶｰﾝと鳴り響く・ケース、イヤホン本体共に手に持つときにやたらと滑りやすい・接触が悪いのか、たまにケースに格納中(充電中)に特にケースを動かすことがなくてもイヤホンが勝手に起動・接続待機状態になりBluetooth送信機に勝手に接続される・同梱されている付属イヤーピースが潰れた状態で箱に入っているため新品状態で既に変形済みのため、そのまま付け替えるとまともに耳にフィットしない1万円近くのコストをかけて上記デメリットを全部許容できる方でないと使い続けるのは難しいのではないかなと思います。これなら3万円前後のセンハイザーの完全ワイヤレスAPT-X LL対応イヤホンを買ったほうが良かったと後悔しております。