VIP Privilege Activity, Enjoy Exclusive Member Price


Mouse over to zoom in

KORG GB-1 Pitchjack Plug-In Electric Guitar/ Bass Tuner with 1/4" Connector

KORG GB-1 Pitchjack Plug-In Electric Guitar/ Bass Tuner with 1/4" Connector

Price on the app only:

Already have TOMTOP APP

Scan the product's code to buy directly!

Note: Please update TOMTOP App to the latest version.


Download freely and enjoy extra offers!

Ship From:
  • China Warehouse
Please select a warehouse
Usually will be shipped in business days hours
The request failed! Please try again.
Sorry, it seems that there are no available shipping methods for your location.Please contact us for further assistance.


Ship to

United States
Stock in: china


Please select a color

For each user order no more 5 item(s)

Special discount has ended

Please note each user for only 1 item(s)

Preorder Add To Cart Out of Stock

Arrival Notice

if the goods arrival in 90 days,we will inform you by email!


Arrival Notice

Notification Subscription Success!

if the goods arrival in 90 days,we will inform you by email!

Notification Subscription Failed!

Error appeared,Please try again later!

Arrival Notice

Buyer Protection

  • Full Refund If you don't receive your order
  • Full or Partial Refund , If the item is not as described Learn More >
Portable and folding guitar or bass tuner that can attache to your keychain or fits in your pocket.
Plug-in design, just insert the 1/4" connector into your guitar/bass output jack, then you can use the tuner.
Flat tuning allows to "drop-tune" your instrument down to 7 semitones below the standard A440 pitch.
With LED meter, easy to read the tuning information.
With a small LED flashlight for on-stage illumination, very considerate design.

Brand: KORG
Model: GB-1
Tuning: 12 note equal-tempered
Detection Range: guitar--B1 7b(41.20Hz)-B6(1975.54Hz); Bass--B0 7b(20.60Hz)-B5(987.77Hz)
Flat Tuning Function: 1-7 semitones(half steps)
Detection Accuracy: better than ±1 cent
Connection Jack: 1/4" mono input jack
Power Supply: 1 * 3V CR2032 Lithium Battery (not included)
Item Weight: 27g / 0.9oz
Package Size: 13.5 * 8.5 * 3.5cm / 5.3 * 3.3 * 1.4in
Package Weight: 70g / 2.5oz

Battery is not included.
Always hold the part just above the input plug when you install or remove the tuner from your instrument to avoid damage the tuner's body.

Package List:
1 * Tuner
1 * User Manual(English/Japanese/French/Spanish/German)


Post a new topic

Please note that TOMTOP Forums are a community for all communicating and getting help each other. There will be some enthusiastic friends participate in your discussions. Of course TOMTOP customer service (with tomtop customer service icon) response is guaranteed ,which is the same way you contact us at

open this forum in full page
Customer Reviews

Average Rating:


based on 2 Customer Reviews

  • 5 stars
  • 4 stars
  • 3 stars
  • 2 stars
  • 1 stars

Share your thoughts with other customers and get Tomtop Points, the first 5 reviews get DOUBLE Tomtop Points!

Write a Customer Review
  • By a***v

    January 8, 2018

    Very fast shipping, thanks a lot!!!

    Is this helpful? (0) (0)

  • By k***4

    December 15, 2017

    Thanks, Handy little tuner for sure.

    Is this helpful? (0) (0)

Top Sellers More

Please activate your account first. We will resend the activation email to help you complete your registration.

Recently Viewed


TOMTOP use cookies to give you the best shopping experience. If you continue to use our services or create a new account, we will assume that you agree to our  Privacy Policy.

Tell us which product you want to Social Saving

Click the refresh verification code