Cu Rad


  • Best entry level IEM for audiophile
  • Low Impedance at 16 ohm
  • Multilayer biomaterial diaphragm
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By coincidence, we acquired 6300 precious composite diaphragms. After pairing and screening, we made 2800 headphones out of them. Rad has outstanding performance and we want to share them with our valuable customers, and we believe this might be the best budget IEMs.


Rad (ᚱ) is the fifth rune in Elder Futhark, and it means journey. Little Dot thanks all the customer that have been with us, it’s been a true journey for us over these years! This is why we made this IEM, not for the profit, but simply praise those who have been with us during this journey. Meanwhile, we would like to invite more people to come along on this wonderful journey.


Rad is a multilayer biomaterial & nanoscale outline composite diaphragm IEM. It comes with 4 layers of biomaterial at the inner circle, and combine the multilayer of nanomaterial, it is our diaphragm. We use 2 coils drive diaphragm, fully CNC housing, 6N OFC cable, and 18K gold plated 3.5mm headphone jack. The accessories set includes the case and ear-buds. This is our answer to the ultimate beginner IEM, an easy step into the world of audiophile.


Technical Spec:


Driver: 10mm composite diaphragm

Distortion: <0.01 @ 1000Hz

Impedance: 16 ohm

Plug: 3.5mm

Frequency Range: 15-20kHz

Sensitivity: 103+/-3 db





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