The tuner is fixed onto a clip. The display is can be flipped up and down and rotatable 360 degrees. Thus you can adjust the angle of the display so that it can be read easily when you clip on to your instrument.
Tuner on Erhu
Tuner on Liuqin
You also have an option of tuning using the built in microphone. Tunes chromatically so theoretically you can use it to tune any instrument.
Interested parties can purchase it here.