Pricing and availability

We compare 600+ stores and found this item at 4 stores. Prices updated .

Reverb
4.0 (6)
$21.99 18 available New
B&H
3.5 (3)
$17.99
Thomann
4.6 (65)
$19.40 $18.90 $0.50 · All time low

Price History

Based on price data from 1 merchant for "D'Addario PW-CT-21 Micro Clip-Free Tuner". Prices shown reflect NEW condition. Tracking began Apr 19, 2026.

* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

Description

Unleash the full potential of your stringed instrument with the D'Addario PW-CT-21 Micro Clip-Free Tuner. This compact marvel is delicately designed to bring precision and ease to your tuning experience, whether you're strumming away in the studio or performing live on stage. Engineered with a highly sensitive piezo transducer, this tuner ensures fast and accurate pitch detection, making it an indispensable tool for guitarists, bassists, and even mandolin players.

Forget the bulky add-ons; the PW-CT-21 integrates seamlessly with your instrument by attaching directly to the machine heads using a unique clip-free design. This not only keeps the aesthetic of your instrument intact but also maintains its balance and weight, allowing you to focus on perfecting your sound. The full-color, tricolor backlit display is reversible and offers four selectable viewing angles, making it visible from any orientation—ideal for both left- and right-handed players.

With a wide calibration range of 410 to 480 Hz, you have the flexibility to tune according to your specific needs, while the visual metronome feature adds another dimension to your practice sessions. The tuner is powered by a CR2032 battery, ensuring longevity with a power-saving auto-off function. Whether you're in the middle of an intense jam session or a laid-back practice, this tuner has your back with its reversible display and intuitive design.

Key Features:

  • Clip-free design for a seamless look
  • Highly sensitive piezo transducer for accurate pitch tracking
  • Reversible full-color display with four viewing angles
  • Wide calibration range from 410 to 480 Hz
  • Visual metronome feature
  • Auto-off function to extend battery life
  • Powered by CR2032 button cell battery (included)

Product specs

Available since July 2020
Chromatic Yes
Display LED
Integrated Metronome No
PSU Connector No
Design Clip On
Special Features Clip Free

FAQs

How does the D'Addario PW-CT-21 Micro Clip-Free Tuner attach to my instrument?

The D'Addario PW-CT-21 Micro Clip-Free Tuner attaches directly to your instrument's tuning machine, eliminating the need for a traditional clip. This design keeps your headstock free from clutter and allows the tuner to remain discreetly out of sight.

Is the D'Addario PW-CT-21 Micro Clip-Free Tuner suitable for both guitar and bass?

Yes, the D'Addario PW-CT-21 Micro Clip-Free Tuner is chromatic, making it suitable for tuning both guitar and bass, as well as other stringed instruments.

Does the D'Addario PW-CT-21 Micro Clip-Free Tuner have a metronome function?

No, the D'Addario PW-CT-21 Micro Clip-Free Tuner does not include an integrated metronome. It is designed specifically for tuning purposes.

What type of display does the D'Addario PW-CT-21 Micro Clip-Free Tuner use?

The D'Addario PW-CT-21 Micro Clip-Free Tuner features an LED display, providing clear and easy-to-read tuning information even in low-light conditions.

What kind of battery does the D'Addario PW-CT-21 Micro Clip-Free Tuner require?

The D'Addario PW-CT-21 Micro Clip-Free Tuner uses a CR2032 lithium battery, which is commonly available and provides reliable power for extended use.

TomoTube

TomoTube

D'Addario NS Micro Clip Free Tuner PW-CT-21 ギターに取り付けるチューナーを買ってみた!!これ便利~

Video thumbnail for D'Addario  NS Micro Clip Free Tuner  PW-CT-21 ギターに取り付けるチューナーを買ってみた!!これ便利~ by TomoTube

D'Addario NS Micro Clip Free Tuner PW-CT-21 ギターに取り付けるチューナーを買ってみた!!これ便利~

TomoTube

TomoTube

Video thumbnail for Тюнеры D'Addario NS MICRO CLIP FREE, NS MICRO, ECLIPSE TUNER - обзор by Muzblock.ru

Тюнеры D'Addario NS MICRO CLIP FREE, NS MICRO, ECLIPSE TUNER - обзор

Muzblock.ru

Muzblock.ru

Reviews

PROS

  • Fits discreetly behind headstock, invisible to audience

  • Secure mounting reduces risk of misplacing the tuner

  • Ideal for guitars with 3-by-3 headstock configurations

  • Particularly effective for PRS SE and similar models

  • Works well on short-scale basses and mandolins

  • Always available, eliminating need for external clip-ons

  • Sensitive enough for stage use on short-scale basses

  • Perfect for 12-string guitars, ensuring accurate tuning

CONS

  • Not compatible with PRS Custom Core USA hardware

  • Screws may be too large for some instruments, like mandolins

  • May interfere with wall hangers on Strat/Tele headstocks

  • Limited sensitivity on low E and A strings compared to clip-ons

  • Incompatible with guitars having vintage-style tuners or volutes

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about D'Addario PW-CT-21 Micro Clip-Free Tuner.

Features and functionality

  • The tuner can rotate on its screw plate for easy viewing, making it adaptable to various instrument headstock orientations.

    Source

Setup and maintenance

  • Users note that you do not need to drill new holes; existing tuner machine screws can be used to attach it.

    Source

User experience

  • Some owners prefer not to have the tuner permanently attached due to concerns about fitting it in cases and the tuner’s performance quality.

    Source
  • Owners find the clip-on version reliable, lasting around five years with battery changes as the only maintenance needed.

    Source

Use cases and applications

  • The tuner works well on smaller instruments like mandolins, though positioning may require some adjustment compared to guitars.

    Source

5.0 out of 5

Based on 0 Reviews and 1 Rating

5 star
4 star
3 star
2 star
1 star

Artist usage

Add artist
See how Steve Bailey uses D'Addario PW-CT-21 Micro Clip-Free Tuner

Steve Bailey

Bassist

Bass Extremes

...
Verified via Daddario

Source leads to Steve Bailey's D'Addario artist page, where you can see which products Steve uses. He is also seen on the product page.

"The Clip-Free Tuner is a godsend. I never have to wonder where my tuner is because it's permanently attached to my instrument and always ready when I am."

"STEVE USES THE CLIP-FREE TUNER"

Used With

Based on how musicians on Equipboard use D'Addario PW-CT-21 Micro Clip-Free Tuner, it is most commonly used with the following gear.

More D'Addario Tuners

D'Addario PW-CT-12

$16.05 - $39.99

# 57

Rank

 
Korg CA-30 Chromatic Tuner

$10.99 - $15.40

# 7

Rank

Rodrigo Amarante Steve Terryberry Steve Terreberry
5 artists using
Korg DTR1000

$40.00

# 13

Rank

Jim Root Joe Walsh Ricky Olson
7 artists using
Korg Pitchclip Clip-On Tuner

$12.90 - $30.99

# 14

Rank

Paul Gilbert Clemens Rehbein
2 artists using
Korg DTR-2000

$60.00

# 15

Rank

Dimebag Darrell Tony Iommi Brad Delson
29 artists using
Peterson StroboClip HD

$45.00 - $67.99

# 17

Rank

Yiannis Papadopoulos
1 artist using
Snark SN5X

$12.04 - $22.22

# 18

Rank

Marin Music Center
1 artist using
Korg Sledgehammer Pro

$19.99 - $51.99

# 19

Rank

Marin Music Center
1 artist using
Snark Super Tight ST-2

$15.99 - $22.99

# 23

Rank

Paul McCartney
1 artist using
Korg GA-1 Tuner

$11.93 - $17.99

# 24

Rank

Julian Wolf
1 artist using
Boss TU-80

$29.00 - $69.95

# 26

Rank

 
Korg GA Custom Tuner

$33.00 - $49.00

# 29

Rank

 
Snark SN-1X

$16.20 - $18.99

# 31

Rank

Phoebe Bridgers
1 artist using
Korg pc-2

$12.90 - $30.99

# 32

Rank

 
Korg TM60BK

$38.33 - $42.39

# 35

Rank

 

Community setups

Similar

Gear Guides

  • Added to Equipboard on by

    jyker
    jyker

    Gear IQ 1502