Mayluck · Handheld mesh

MY-138BA tall display. Controls up front.

MY-138B gives the front of the device a long digital display and two buttons. It is a rechargeable handheld option for people who want timing information to be a visible part of the layout.

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MY-138B product image showing tall digital display; two front buttons
MY-138B

The design, up close

Get to know the parts.

MY-138B full product view, accompanying the design and component descriptions
MY-138B · Device and accessories
  1. Tall digital display

    The tall screen brings timing into view. Compare it with MY-136B’s compact rectangular display.

  2. Two front buttons & indicators

    Two front buttons sit beside the display, with low-battery and low-liquid indicators.

  3. Replaceable medicine cup

    The medicine cup above the body is replaceable. Mayluck Care can help you find the matching part.

The model, at a glance

The specifications.

Power, controls and the details that make up your device.

MY-138B instructions
Format
Handheld mesh
Power
Built-in rechargeable battery
Controls
Tall digital display; two front buttons
Medicine cup
Replaceable 10 mL medicine cup
timer options
10 or 20 minutes

Use your prescribed dose and duration; cup capacity and timers are device specifications.

Choose by the differences

Also worth a closer look.

Compare the complete range →
MY-136B product image

MY-136B · Handheld

Compact display and two round buttons

MY-136B is the closest layout comparison: a compact rectangular display and two round buttons, with the same 10- and 20-minute timer choices.

Get to know MY-136B →
MY135 product image

MY135 · Handheld

Rechargeable, with a rounded digital display

MY135 uses a rounded display and pale blue details. It is another way to arrange visible timing within a rechargeable handheld body.

Get to know MY135 →

The purchase, when you are ready

Same model.
A choice of quantities.

One device with extra masks and mouthpieces, or two complete device kits. Choose the quantity in the official Mayluck Store.

View MY-138B in Store
One device + one extra accessory set
1 × MY-138B2 adult-size masks · 2 child-size masks · 2 mouthpieces1 USB-A to USB-C charging cable · 1 user manual
Two-device kit
2 × MY-138B2 adult-size masks · 2 child-size masks · 2 mouthpieces2 USB-A to USB-C charging cables · 2 user manuals

Medication, bags and pouches are not included. Extra accessory sets contain masks and mouthpieces, with no extra device or charging cable.

See what an accessory set includes →

Product reviews

MY-138B: what reviewers say.

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Your model, beyond the first day

Care for your MY-138B.

Find instructions, cleaning guidance and device help at Mayluck Care.

Open MY-138B support

Product details updated October 11, 2026.