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Black open-ear wireless earbuds with clip-on design and charging case

Monster AC339 open-ear wireless earbuds, Bluetooth 6.0, 40h, black

SKU CH-WABA-B9H2B

Open-ear clip-on earbuds with Bluetooth 6.0, touch controls, IPX6 water resistance and 40 hours of playback

  • TypeWireless Charging Case, Open Ear
  • ColorBlack
  • SpecWireless Charging Case, AC339, BLACK, Wireless
  • Media PlaybackTouch Control, Touch, touch
  • RadioBluetooth 6
  • Speakersdynamic_driver
  • Open-ear design keeps you aware of surroundings while listening
  • Bluetooth 6.0 provides faster, more stable connections
  • 40 hours total playback from the charging case
  • IPX6 waterproof rating resists sweat and heavy rain
  • Touch controls handle calls, music and voice assistant

Open-ear wireless earbuds with 40-hour battery

The Monster AC339 are open-ear wireless earbuds that sit outside the ear canal using a clamp-over design. They connect via Bluetooth 6.0 and include a wireless charging case that provides up to 40 hours of total playback. Touch controls handle calls, voice assistant and music playback.

Suited for all-day wear and outdoor activity

The open-ear layout keeps ambient sound audible, which helps office workers stay aware of colleagues and lets runners or cyclists hear traffic. IPX6 water resistance handles sweat and rain during workouts. Buyers who need active noise cancellation or maximum bass isolation should look at closed-back in-ear or over-ear models instead.

Bluetooth 6.0 with wireless charging case

The earbuds use Bluetooth 6.0 for faster, more stable connections and improved energy efficiency. The supplied case charges wirelessly and shows remaining power on a digital display, so you can confirm the 40-hour reserve before leaving home.

Highlights

  • Open-ear design keeps you aware of surroundings while listening
  • Bluetooth 6.0 provides faster, more stable connections
  • 40 hours total playback from the charging case
  • IPX6 waterproof rating resists sweat and heavy rain
  • Touch controls handle calls, music and voice assistant

Specifications

BrandMonster
SeriesAC339
ModelAC339
Part NumberMonster
TypeWireless Charging Case, Open Ear
ColorBlack
SpecWireless Charging Case, AC339, BLACK, Wireless
Media PlaybackTouch Control, Touch, touch
RadioBluetooth 6
Speakersdynamic_driver
Remote ControlTouch Control
Battery Life40 hours
MP3 SupportCompatible with any Bluetooth-enabled device, such as computers, smartphones or tablets, MP3 Player, TV, Laptop
Sports LeagueMaster3
Contains Embedded Batterytrue, batteries_contained_in_equipment
FeaturesWireless Charging Case
Package ContentsWireless Charging Case

Questions about this item

Which Monster AC339 version should I pick for the longest battery life?

The AC339 model provides up to 40 hours of total playback with the wireless charging case included.

What does the 40-hour battery figure mean for daily use?

It represents the combined listening time from the earbuds and the charging case before you need to recharge the case itself.

How does Bluetooth 6.0 affect connection stability and power use?

Bluetooth 6.0 enables faster, more stable connections and improved energy efficiency for longer sessions.

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