Thinksound ts03 IEMs
Thinksound ts03 IEMs

Handcrafted Housing, Upgraded Acoustics

From Thinksound, a small company that’s built its name on clear, detailed audio and a commitment to sustainability, the ts03 in-ear headphones deliver admirably on both fronts. They’re a new version of the company’s award-winning ts02 IEMs, which gained popularity on Massdrop for their great value and eye-catching wood finish. The handcrafted, walnut-stained housing is made from sustainable sources, and everything from the PVC-free cable to the recycled packaging is designed to reduce their environmental impact. Featuring upgraded acoustics, the 8-millimeter driver produces an accurate, balanced sound and a remarkably wide soundstage.

Note: This drop is limited to 300 units.

Thinksound ts03 IEMs
Thinksound ts03 IEMs
Thinksound ts03 IEMs

Comfortable & Portable

Complete with a gunmetal aluminum baffle, the housing features a lightweight construction for comfort during long listening sessions. At just 10 grams, the ts03s are light enough to carry with you wherever you go—including the gym, where their sweat-resistant design and secure fit are particularly handy. The 4-foot cable is reinforced with Kevlar for tangle resistance and has a redesigned single-button mic that lets you take calls and control your music playback. Passive noise cancellation minimizes ambient sounds, and four sets of silicone ear tips ensure you find the perfect fit.

Thinksound ts03 IEMs
Thinksound ts03 IEMs


  • Thinksound
  • Handcrafted wood housing
  • Acoustically enhanced 8mm driver
  • Frequency response: 20 Hz–20 kHz
  • Sensitivity: 99 dB (+/- 3 dB) at 1 kHz, 1 mW
  • Impedance: 16 ohm
  • Passive noise isolation
  • Sweat-resistant design
  • Kevlar-reinforced, tangle-resistant cable with mic and call/music control
  • Compatible with iOS and Android devices
  • Cable length: 4 ft (1.2 m)
  • Plug: ⅛ in (3.5 mm) gold-plated, 45º-angled plug
  • Weight: 0.4 oz (10 g)


  • 4 sets of silicone ear tips (S, M, L, XL)
  • Cord clip
  • Cotton carrying pouch
  • Hard case


All orders will be shipped by the vendor.

Estimated ship date is Feb 12, 2018 PT.

After the drop ends, payment will be collected. To deliver the best value to the group the request will then be submitted to the vendor up front, making all sales final. Be sure to check the discussion page for updates.

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