Shopping Cart



The Button Box stocks accordion and concertina microphones from Microvox, a small company in the United Kingdom specializing in mic systems for acoustic instruments. We also carry Microvox microphones for other instruments, including violin, viola, flute, whistle, bodhran, guitar, mandolin, bouzouki, brasses, and banjo. Microvox provides a three-year warranty on their products.

Microvox microphones use electret condenser mic elements. All are studio quality or better. Accordion and concertina microphones attach to the instrument with strips of Velcro, making installation simple and reversible, allowing for easy transfer of mics from one instrument to another, and providing some insulation from mechanical noise. See the Microvox FAQ for more information.

Accordion Microphones

The accordion treble microphone is a long bar with 3 or 4 microphone elements. Many players choose to mic the bass side of the accordion as well. Microvox makes two series for accordions: the M420/M410/M405 series, which requires a power supply unit; and the M305/M310 series, which is powered by an AA battery.

accordion mikes

400 Series

These microphones all require a power supply unit (not included, see below for options).


12¾" accordion treble bar (4 mics).


9" accordion/melodeon treble bar (3 mics).


Power Supply Units

All microphones except for the M305 and M310 require an external power supply unit (PSU). For more information about power supplies, see the Microvox FAQ.

microvox standard psu

Standard Power Supply

A larger, belt-mounting power supply with on/off, volume control, internal balance and LED battery indicator in a die cast aluminium case. 2¼" x 4½" x 1¼". Requires 9V battery.

microvox mini psu

Miniature Power Supply

A lightweight basic power supply with two microphone inputs, one of which is adjustable, thus providing balance control. 2" x 3" x 1". Requires AAA battery.


Other Microphone Products

Swan Neck Microphone

Used for brass instruments and bodhran. PSU required.       


M500 Microphone

Recommended for banjo and saxophone. Similar to the M400, except that the element faces across the instrument. PSU required.


XLR Cable

From Quantum Audio. High-impedance cables, 15 feet long. XLR male to ¼" male.



Button Box Green & Gold Logo T-Shirts

Our logo with sparkle! 100% cotton, deep forest green and lettering in metallic gold with silver shadows.

Sizes M - XL
Select size: $14.00

Button Box Logo T-Shirts

Our logo - plain and simple! 100% cotton, black with white ink. These sizes run small.

Sizes S - XL
Select size: $14.00

Dehumidifiers & Humidifiers


This silica gel canister absorbs moisture. Keep in your case to protect your instrument during the humid summer months. Heat in the oven to reactivate. Size 4" x 2" x ¾".

Case Humidifier

Oasis® Case Humidifier

This humidifier attaches to the inside of your instrument case, using magnets and either a steel belt-style clip or a steel strip with adhesive backing. Humidifer fabric shrinks inward as water evaporates, so you can easily see when it's ready for a refill. Syringe for easy refilling included.


Oasis® Digital Thermometer and Hygrometer

The Oasis® Digital Hygrometer accurately measures relative humidity and can help you decide when to use your humidifier or dehumidifier. At 4" x 1.25" x .375", it's small enough to fit right into your case.