Description from Amazon USA :
- BUILT TO LAST - Strong and Resistant for Beginners and Professionals on the Road
- SUPER EASY TO USE - One Button Controls Everything. Clip it, Turn it on and You're Ready!
- ROTATIONAL BRIGHT DISPLAY - Multi-Angle View with a Rotational Clip Design
- ACCURATE - High Precise Detection with a Sensitive vibration Clip, It will Be in Tune Fast
- BACKED BY 6 MONTHS GUARANTEE. If it doesn't work just feel free to contact us for a consult.