Toneking is a Chinese company that produces in-ear monitors and earbuds. I would like to thank Toneking and Penon for the review unit of the TO400s. At the moment, you can purchase the Toneking TO400s from Penon or Aliexpress .



  • Driver Configuration: 16 mm Dynamic
  • Frequency Response: 10Hz – 32KHz
  • Sensitivity: 112dB
  • Impedance: 400Ω

Unboxing & Accessories

The earbud comes in a black package with the brand name in silver on the front. There is a transparent film which shows the earbud. After opening the box, there are the TO400s and black soft carrying case sporting the brand name. Inside the case, you will get 1 shirt clip and 8 pairs of foam.



Page 2: Earbud Build & Design, Cable Build & Design