One gauge, better tuner
MARTIN 18PROMO0002
A capo, a chromatic clip-on tuner with pitch calibration, a two-inch nylon pickholder strap and six medium-gauge picks in six colors. The better-specified tuner on this shelf, and the narrower pick selection.
Specifications
- Tuner
- Clip-on, chromatic, with a high-definition screen and pitch calibration, stated for guitar, bass, ukulele and violin. Battery included. The only tuner on this shelf that publishes either chromatic operation or calibration (maker’s bullet)
- Capo
- Stated one-handed operation, consistent fretting, and an adjustable fit for almost any neck profile (maker’s bullet)
- Strap
- Black nylon with leather ends and a built-in pick holder. 2 in wide, adjustable 40 to 60 in (maker’s bullet)
- Picks
- Six celluloid picks, medium gauge, rounded tip, in black, red, green, white, blue and purple. One gauge for all six — where another box on this shelf supplies four gauges (maker’s bullet)
- Pick gauge in millimeters
- MARTIN puts nothing in writing on this. *Medium* is stated and no figure is given; one box on this shelf publishes 0.46, 0.71, 0.96 and 1.2 mm (0.05 in)
- Capo clamping range
- MARTIN puts nothing in writing on this. Neither of the two capos on this shelf publishes a neck thickness or a clamping range, and *almost any neck profile* is the maker’s wording
- Tuner accuracy
- MARTIN puts nothing in writing on this — chromatic operation and calibration are stated, a cent figure is not
- Recorded size
- 229 × 203 × 152 mm (9.02 × 7.99 × 5.98 in) in the product record
- Manufacturer reference
- 18PROMO0002
- Weight
- 320 g (11.3 oz) in the product record
- Amazon reference
- B0DFQHYFFJ
- EAN
- 0729789679527
A chromatic clip-on tuner with a high-definition screen, pitch calibration and the battery in it. A one-handed capo. A 2-inch black nylon strap with leather ends and a pick holder, 40 to 60 inches. Six medium-gauge celluloid picks with rounded tips, in six colors. $39.99.
The tuner is the reason to pay the difference. It is the only tuner on this shelf that publishes either chromatic operation or pitch calibration, and both are real features rather than packaging. Chromatic means it recognizes all twelve notes instead of expecting standard guitar tuning, which is what makes a drop tuning, a capo high on the neck or a ukulele possible at all. Calibration moves the reference off 440 Hz, which is what you need when playing along to a recording that sits slightly sharp. The other tuner on this shelf states neither.
The one-handed capo is the second well-chosen piece: the hand that fits a capo is already holding the neck, and a capo needing two is a capo that stops a song.
The strap is standard and sound — 2 inches, nylon, leather ends, 40 to 60 inches. It is one of two straps on this shelf to state leather ends, which is where a strap fails. It does not reach the 72 inches of the dedicated strap here, and it starts higher than the 35 of the other box’s strap.
The picks are where it gives something up. Six, all medium gauge, in six colors. The shelf’s own prescription is to try both ends — flexible for rhythm, stiff for single notes, and most players use both — and one gauge does not allow that. The other box on this shelf supplies eight picks in four published gauges, two of each, and names the millimeters. Six of one gauge is the right answer only for a player who has already decided; for one who has not, it is the second half of the question skipped.
Two published gaps, and they are the same two as the other box. No clamping range for the capo — almost any neck profile is the maker’s wording, and neither capo on this shelf publishes a figure. And no cent accuracy for the tuner, which is what would separate a good clip-on from an adequate one.
At $39.99 it is the most expensive item on this shelf, for four pieces where the other box has five.
The product record gives 320 g (11.3 oz), in a box of 229 × 203 × 152 mm (9.02 × 7.99 × 5.98 in).
Availability
Read on the day this page was built: $40 at the American Amazon shop.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Prices quoted in this text were read on 2026-10-07. The live price is at the top of the page.