This is Sony’s premium true wireless earbuds featuring noise cancelling. The package comes included with a premium charging case, a charging cable, 2 pair of earfins and a total of 7 eartips size (4 silicone and 3 comfort foam). The comfort foam eartips is smoother and much comfortable than Comply’s foam eartips, it’s a first for me and I enjoy it a lot. The earfins is small add minor support only. The earbuds can be use for low intensive sports activities like gym and slow pace jogging.

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You can power on/off the earbud by taking out or putting back into the charging case, aside from that long press will also do the trick. For right side button, one press controls call/media play, 2/3 times quick press for track skipping and long press is to activate your smartphone assistance. For the left side button control, it toggles between noise cancelling on or off and ambient mode. The volume is adjusted via your device and not on the earbud not a big issues since we true wireless earbuds user fix it at one volume and we are good to go.

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The passive (hardware based) sound isolation is good thanks to the longer sound tube length measuring at 1cm. It features active noise cancelling that work very well to cut low-frequency noise without adding the the low-humming noise back into your ears unlike cheap brands. However you can enable ambient sound in two modes, normal mode help you to hear your surrounding a little and voice mode to enhance vocal if you’re having conversation with people around you without the needed to take off the earbuds. Addition to that there is adaptive ambient mode is available where the earbuds detected your movement a apply the appropriate noise cancelling. All the noise cancelling and ambient mode tweak requires the smartphone app.

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It’s powered by pair of 6mm Neodymium Dynamic Drivers. It uses Bluetooth 4.1 for connectivity and it has with NFC built in the case for easy device pairing. The maximum stable line of sight is 11 meters. The rated battery life is 3 hours for the buds when use together. Our battery is based on the iPhone 6 at the 4rd volume bar

1. 4th Volume NO Noise Cancelling
1st (buds alone): 3 hours 10 minutes
2nd (1st box): 3 hours
3rd (2nd box): 3 hours 5 minutes
4th( 3rd box): 1 hour 50 minutes
Total 11 hours 5 minutes

2. 4th Volume Noise Cancelling On
1st (buds alone): 2 hours 40 minutes
2nd (1st box): 2 hours 40 minutes
3rd (2nd box): 2 hours 35 minutes
4th( 3rd box): 1 hour 5 minutes
Total 9 hours.



Technical Specification

Weight: Approx. 6.8g (Headset) / Approx. 70g (Charging case)
Headphone Type: 6mm Neodymium Dynamic Driver
Frequency Response(Bluetooth® Communication): 20Hz – 20,000Hz (44.1kHz Sampling)
NFC: Yes (Case)
Battery Charge Time (per bud): Approx. 1.5 hrs
Battery Charge Method: USB charging (with Case)
Battery Life(continuous music playback time): Max. 3 hrs (NC ON) / Max. 3 hrs (NC OFF)
Battery Life(Waiting Time): Max. 8 hrs (NC ON) / Max. 35 hrs (NC OFF)
Bluetooth® version: Version4.1
Effective Range: Line of sight approx.30ft (10m)
Frequency Range: 2.4GHz band
Profile: A2DP, AVRCP, HFP, HSP
Supported Audio Format(s): SBC, AAC
Supported Content Protection: SCMS-T
Charging Case Battery Charge Time: Approx. 2 hours to charge case / Approx. 3 hours to charge case with headset
Case Weight: Approx. 70g
Case Dimension: Approx. 103.0 x 42.6 x 24.5mm
What’s In The Box

  • Carrying Case: Charging Case
  • USB Cable: 1
  • Earbuds: Long Hybrid silicone rubber earbuds (SS, S, M, L X2) , Fitting Supporters (M, L X2) , Triple-Comfort Earbuds (S, M, L X2)

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Audio quality

POP/EDM:

Tiaan – Be Ok (Low bass frequency)

The low bass frequency is superbly energetic and notable, you can feel the air pressure booming in your ears. It doesn’t eat into the vocals and it has zero bass distortion. The subtle bass vibration fades smoothly. Low bass frequency is well bodied. However, the low bass frequency slightly overpower the vocals, just a tiny bit.

Pia Mia – Do It Again (standard bass)

The bass is superbly energetic and firm, you can feel the air pressure. The bass fades butter-smooth with a long drag especially at the 2:05 mark, the vibrations is just eargasm. Bass doesn’t overpower vocal much and feels balanced,  there is a clear separation between the two. Bass is well bodied. EDM tones sounds fun.

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Vocals/Instrumentals:

Violinder – Raindrops (instrumentals)

The Piano/Violin tone sounds right and natural, leans closer to the crystal-clear type not the warm-sound, I prefer crystal-clear type. It has right amount of shine at the highs, just right on. Tone are well bodied doesn’t sound half-hearted.

The bass/drums feels balance with the Piano/Violin in term of audible levels, there is clear separation between the two. Good indication of a balance IEM.

Pentatonix – See Through

Mitch Grassi’s hi-pitched-male Tennor vocals perform very well at the highs with the right amount of shine, it feels bright. The best we have heard on a true wireless earbuds, top 1 on our list as of this publishing date. Each singer can be identified easily. Every diction and pronunciation is crystal clear. Vocal beatboxing, echoing and humming is eargasm which doesn’t overpower Mitch Grassi’s vocal in the song.

Audio quality is little bit better than the sport version WF-SP700N that we review earlier. Performs well from the lows to thighs easily. Take the top spot for true wireless earbuds category this year for us.

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