The simplest guitar tuner, magnet + tuner = Magnetune.
Once the power is on, simply attach the magnet to the back of the guitar peg or strap pin and then tune. You can play it as is. Can be attached to music stands. You can also put it in your pants pocket.
The magnet part for attaching to the guitar can be rotated 360° with a movable ring. Not only can it be attached to any metal part of the guitar body of the guitar and tuned at an easy viewing angle.
The LED is the closest string number to the string you hear at a glance to see which string is tuned. The top and bottom LEDs will light up both the top and bottom of the LED lights perfectly. Higher slider will blink upward and lower side blink and larger deflection will flash faster, and the less misalignment will gradually slow
The diameter of 33mm is just one size larger than the cap of a plastic bottle (about 30mm) and is almost the same size as a mens watch. It is virtually invisible to the passenger seat when placed on the back of the peg, so it will not spoil the beautiful guitar shape. In addition, due to the loss of the clip, the weight of 0.4 oz (11 g) including the battery is reduced. The magnet makes it easy to put on and take off, so you dont have to worry about the weight on the neck and continue to support your playing.
As a guitar tuner, it has been pursued by its simplicity in just the important parts, and it has a long battery life that is approximately 30 hours. It also comes with an auto power off that automatically turns off after 3 minutes of silence, so you can use it with almost no need to worry about when to change the battery.
Measurement range (sign wave): E2 (82.41 Hz) to E7 (2637.02 Hz)
Measurement accuracy: within ± 1 cent
Reference pitch: 440 Hz
External dimensions: 1.3 (W) x 1.4 (D) x 0.5 (H) inches (33 (W) x 35 (D) x 13 mm).
Weight: 0.4 oz (11 g) (including batteries)
Battery Life: Approx. 30 hours (when using A4 input and continuous operation).
Accessories: 1 x CR2032 button battery (3 V) for checking operation.

From the Manufacturer

Magnetune GUITAR TUNER

Sticks together to support tuning at any time

The simplest guitar tuner, magnet + tuner = Magnetune

360° rotating magnet for any angle The magnet part for attaching to the guitar can be rotated 360° with a movable ring.Not only can it be attached to any metal part of the guitar body of the guitar and tuned at an easy viewing angle.	LED indicates string numbers and tuning up and down and misalignment The LED is the closest string number to the string that you hear at a glance to know which string is tuned.The top and bottom LEDs will light up both the top and bottom of the LED lights perfectly.When the high is offset, the upper side will blink on the lower side, and the lower side will blink faster, and the higher the deviation gradually gradually gradually slower as the deviation is dropped.	Compact size and lightweight body The diameter of 33mm is just one size larger than the cap of a plastic bottle (about 30mm) and is almost the same size as a mens watch.It is virtually invisible to the passenger seat when placed on the back of the peg, so it will not spoil the beautiful guitar shape.In addition, due to the loss of the clip, the weight of 0.4 oz (11 g) including the battery is reduced.The magnet makes it easy to put on and take off, so you dont have to worry about the weight attached to the neck and continue to support playing.	Energy saving design with simplicity As a guitar tuner, it has been pursued by its simplicity in just the important parts, and it has a long battery life that is approximately 30 hours.It also comes with an auto power off that automatically turns off after 3 minutes of silence, so you can use it with almost no need to worry about the battery being replaced.

Specifications

Sound: 12 average

Measurement range (sign wave): E2 (82.41Hz) to E7 (2637.02Hz)

Measurement accuracy: within ± 1 cent

Standard pitch: 40 Hz

External dimensions: 1.3 (W) x 1.4 (D) x 0.5 (H) inches (33 (W) x 35 (D) x 13 mm).

Weight: 0.4 oz (11 g) (including batteries)

Battery life: Approximately 30 hours (when using A4 input and continuous operation).

Accessories: 1 x CR2032 lithium battery (3 V) for checking operation.