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Update: Fiio M11 Pro pre-sale today,I placed an order . I will receive my package around September 26th Features: 1. DAC chips are upgraded to dual AK4497EQ 2. Adopted THX-AAA amplifier chipset 3. Increased ROM to 64GB 4. Increased battery capacity from 3800 to 4370mAh Scheduled to be released in Oct. (subjected to change) Estimated SRP at USD 600-700 (subjected to final confirmation)

If you just have 100 dollars , I think you can choice so many earbuds 1.1more stylish only $99 main feature: Bluetooth 5.0, 24-Hour Battery Life, Multiple Bluetooth Pairing Modes Support Fast Charge: with 15 minutes of charge time giving you 3 hours of use. 2.TFZ B.V2 only $59 Bluetooth version: 5.0Bluetooth chip: AB1526PPlaying time: about 15hoursUse time:6-8 hoursEeffective DR resistance: about 20 metersCharging time: about 1-2 hoursWaterproof: IPX5 3.Astrotec S80 only $99 S80 adaping Dupont 4um ultra soft Beryllium dynamic drivers. it delivers well extended high frequencies, clear, layered mids and rich, articulate bassHigh speed & stable transmission via blutooth 5.0 supporting AAC(Advanced Audio Decoding) and SBC codec formats developed by Dolby Laboratories(Android mobile phone users can set them themselves in the developer options). Because I bought these three earphone at the same time ,but I prefer 1more stylish

So which is better ? I think I want to buy fiio btr3 ,but acctually I bought up2 .Thanks your review