Omaker M4 Portable Bluetooth 4.0 Speaker Review

Anyone who has ever tried to listen some music in the shower using their phone or sound system playing in a different room will know what a futile endeavor it is. However, thanks to Omaker you can now listen to your favorite tunes without compromising on sound quality or safety. In addition to its great performance in the bathroom the M4 Portable Bluetooth speaker can also be taken to the beach or just about anywhere you want to play your music.

Sound Quality

Considering the compact size of this speaker it is able to deliver bass that is well above average. Obviously the passive subwoofer is not going to cause your windows to rattle, but I don’t think anyone would expect that from such a small speaker. The sound quality is also crystal clear and has none of the distortion that frequently plagues cheaper portable speakers. When listening to music in the shower you ideally want something that can be heard above the sound of the water and the Omaker M4 certainly delivers.

It is probably not big enough to carry a party on its own, but for personal use it works great. The speaker obviously sounds great in the shower, but it is also nice to take along on camping trips or even when busy working outside. For the best results you need to point the unidirectional speaker, located on the “top” area of the device, towards listeners.


This speaker actually includes a wrist strap, which is something I don’t see very often on these type of speakers and should give you an idea about how lightweight the design is.

The square design of the speaker gives it a nice rugged look and it has four buttons on the side. These consist of a power button, phone answer button, as well as volume up and volume down buttons. The buttons are a little small, so if you have large hands, they can be tricky to operate.


Despite the low weight of this speaker it didn’t come at the cost of durability. It is definitely a piece of equipment that can take a few knocks and still keep working. The flap on the side is a little difficult to open, but since it is part of the splash-proof design it is something that I can live with. Under the flap you’ll find the auxiliary in, reset button and micro-USB charge point, so it is not like you need to open the flap all the time. As the speaker is splashproof, dustproof and shockproof you can use it outdoors with confidence.


Included in the package is a micro-USB cable for charging the speaker, which incidentally only takes about three hours to complete. According to Omaker, each charge gives you about 12 hours of playback time as long as you keep the volume at 80% or lower, but from my own experience this is actually a very conservative estimate.

A NFC chip, found on the underside of the speaker, makes it easy to pair it with a compatible audio device. Don’t worry, the speaker also works fine with a regular Bluetooth connection.

Pros and Cons

The Omaker M4 has an impressive list of features for the price and while it is not perfect the downsides are rather minor in comparison.

Omaker M4 Portable Bluetooth 4.0 Speaker Pros

  • Features Bluetooth 4.0 technology for fast device connection
  • Connection range of up to 33 feet
  • Long battery life allows for daylong playtime
  • Recharges very quickly
  • Rugged design for better durability
  • Can be used as an outdoor or shower speaker
  • Splashproof, shockproof and dustproof
  • Able to connect instantly using NFC technology
  • Can also connect using traditional audio cable
  • Small and lightweight with a compact design
  • Very straightforward to operate
  • Crisp, clear audio

Omaker M4 Portable Bluetooth 4.0 Speaker Cons

  • The small buttons can be an issue for some people
  • Speaker does not automatically
  • No noise cancelling feature for the speakerphone


Want to listen to your tunes in the shower without messing up your phone? Then this is the speaker to get. It is affordable, durable and features audio quality that is much more impressive than what you would expect from its size.

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