Mijia Electric Polishing Pen In ear and Transparency mode lets surrounding

and Transparency mode lets surrounding sound in when awareness matters

delivering Hi-Fi audio with rich details and powerful bass for an immersive listening experience

Charging parameter 5V ===2A

8 handy filters*

delivering dual coverage at home that effectively reduces blind spots

Mijia Electric Polishing Pen In ear and Transparency mode lets surroundingSlim, portable, and great for precision work 2cm slender pen design Dual modes: Lithium battery or plug in Durable brushless motor Dual modes: Lithium battery or plug in No fear of running out of power Simple and intuitive interaction Speed adjustment knob and single power button A versatile work assistant Engraving, grinding, polishing, drilling it can do it all, easy to operate and quick to master Intuitive and simple for beginners With a single