Harley Benton CTG-20 BK USB Clip Tuner

I was intrigued by the fact that this clip-on tuner has the USB charging feature. In addition, the price was very affordable. So, I decided to buy one.

Pros:
- USB charging: the device comes with a USB/micro-USB/A cable that can be connected between the tuner and any power source with a USB/A outlet (computer, or any of the cell phone chargers that everyone has lying around these days). Charging is quick (less than 2h), and I really like the fact that the battery level is displayed on the screen of the tuner. No more fuss with batteries!
- Large display with easy to read markings: I can easily see when the string is in/out-of tune. The "off-by-cent" readings in the bottom right corner truly help when adjusting the intonation on my guitar.
- Accuracy and fast response: I am amazed, how well the tuner works. The pitch detecion algorithm finds the pitch very quickly, and the tuner is very robust towards external vibrations (such as those produced by loose screws or trem springs).

Cons:
- The tuner display three degrees of freedom when it comes to the positioning of the display unit: the shaft rotates, and it has two joints. This is good, since I can easily adjust the tuner into a correct position for ergonomic viewing. However, I would assume that this complex mechanic structure is the first one to break. Remember to not apply too much force when adjusting the position of the unit. Luckily, the screws of the joints can be easily tightened if the become loose.

I can warmly recommend the HB CTG-20 BK USB Clip Tuner to all guitar players: it is affordable yet of high-quality. The performance of the tuner is much better than that of another name-brand clip tuner I own. I am sure it will work equally well with other stringed instruments (basses, ukuleles, etc.).