This is Treblab’s true wireless sport earbuds featuring IPX4 rating, meaning it is water and sweat proof. The package comes included with lanyard, the open style charging case and cable, total 6 pair eartips sizes (3 silicone and 3 foam) and 3 earfins sizes. The combination of foam eartips and earfins is superb for sports and full running. Shaking your head like 9 magnitude earthquake won’t make it fall of anytime, but maybe your head first.

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You can power on/off the earbud by taking out or putting back into the charging case, aside from that, a long press on the top button on both sides will also do the trick. The button are multi-functional, but you’ll master it within 5 minutes. The passive sound isolation is good thanks to the long sound tube length that goes deep into the ear canal.

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Foam and Silicone Eartips

It’s powered by pair of 8.2mm Beryllium Dynamic Drivers. Do note that beryllium driver are rare to find in the market due to high cost and it is a miracle that it is available in a sport wireless IEM like this, similar to the Treblab X5 we review in the past. Beryllium is stiffer (for the strength diaphragm) so it doesn’t produce unwanted vibration that cause audio distortion at any frequency, at the same time being highly responsive when it comes to reaction time (thickness of diaphragm).

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With and Without Earfins

It uses Bluetooth 4.2 for connectivity. Maximum stable line of sight connection is 11 meter. Our battery is based on the iPhone 6 at the 4th volume bar lasted us a total of 11 hours and 5 minutes.

1st (buds together): 4 hours 50 minutes
2nd (1st box): 4 hours 55 minutes
3rd (2nd box): 1 hour 20 minutes
Total battery life: 11 hours 5 minutes



Technical Specification

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1    Playtime: Up to 5 hours (+ 2 additional charges with Charging Case)

2    Charging Time: 2 hours

3    Battery: Earbud (each): 75 mAh, Charging Case: 300 mAh

4    Bluetooth: 4.2

5    Signal Range: 33 feet / 10 m

6    Frequency Response: 20 Hz – 20 kHz

7    Driver: Beryllium, 8.2 mm diameter

8    Noise Cancelation: cVc 6.0

9    Water Resistance: IPX4

10    Phone Calls: Built-in mic

11    Voice Assistant: Siri, Google Assistant

12    Color: Black / White

13    Earbuds (Each) Dimensions: 34 x 12 x 37 mm / 1.34 x 0.47 x 1.45 in

14    Charging Case: 34 x 40 x 20 mm / 1.34 x 1.57 x 0.78 in

15    Earbuds (Each)Weight: 7 g / 0,25 oz / 0.015 lb

16    Charging Case Weight: 21 g / 0,74 oz / 0.047 lb

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Audio quality

Pop/EDM:

Tiaan – Be Ok (Low bass frequency)

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

Pia Mia – Do It Again (standard bass)

Bass is highly 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 and one of the best in our channel. Bass slightly overpower vocals, there clear separation between the two. Bass is well bodied. EDM tones sounds fun and exciting.

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Open Style Charging Case

Vocals/Instrumentals:

Violinder – Raindrops (high frequency instrumental)

Piano/Violin tone sounds right and natural, leans closer to the crystal-clear type not the warm-sound type, I prefer crystal-clear type. It has right amount of shine at the highs. Tone are well bodied doesn’t sound half-hearted.
 Bass/Drums feels balance with Piano/Violin in term of audible levels, sometime the piano/violin is slightly notable, there is clear separation between the two. Good indication of a balanced IEM.

Pentatonix – See Through (high frequency vocals / vocal separation)

Mitch Grassi’s high-pitched-male Tennor vocals perform very well at the highs with the right amount of shine, feels bright. One of the best we have heard on a true wireless earbuds. Each singer can be identified easily. Every diction and pronunciation is crystal clear. Vocal beat-boxing, echoing and humming is eargasm which doesn’t overpower Mitch Grassi’s vocal in the song.

 

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It is not easy to find a Sports True Wireless Earbuds that performs well throughout the range from the low frequency to the high frequency. The sound signature is 100% identical to the Treblab X5 we had review in the pass, just in a different battery life, form factor and price. It can closely rival the Sony Wireless IEM like the Sony WI-SP600N and Sony WF-SP700N. The Beryllium gave the X2 and X5 the edge to outmatch most of it competitors.

Purchase the Treblab X2 Here

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