iClever IC-BTS04 Bluetooth Speaker Review

The iClever IC-BTS04 Bluetooth speaker is a pocket size portable speaker that’s designed to take outdoor life in its stride. This iClever speaker has an IPX5 water resistant rating which means it can be safely used around water and damp areas – but it should not be submersed.

iclever wireless bluetooth-speakers with enhanced bass

What’s in the Box

The iClever Wireless Bluetooth Speakers with Enhanced Bass comes well packaged in a foam lined blue box, a bit different from the usual brown box that we’ve seen with other iClever products. Inside you’ll find:

  • The iClever IC-BTS04 speaker
  • A wrist strap for portability
  • A USB charging cable
  • An AUX cable
  • The user manual and warranty card

iClever IC-BTS04 Design

Like the IC-BTS03, the iClever IC-BTS04 Bluetooth speaker has been designed for people on the go. Its slim design and ultra low-profile means you can easily slip this speaker into your pocket and go. The super slim aluminium housing is just over 1 inch thick and the overall length is 6.6 inches –a very well built and sturdy device.

The front of the speaker has a silver aluminium plate with perforated holes along the entire face along with a centered “iClever” logo. To the right you’ll find the AUX and charging port, these are hidden away behind a rubber cap which protects it from water and dust.


The top panel of the IC-BTS04 is where you’ll find all the function buttons, these include the power on/off button, the play/pause button, the Bluetooth pairing/speakerphone button, the previous/volume down button and the next track/volume up button. As with most other Bluetooth speakers on the market, the volume and skip buttons are multi-functional – a short press skips tracks while a long press will increase or decrease the volume.

iClever IC-BTS04 Sound

Audio playback from this iClever aluminum Bluetooth speaker is truly a joy, for a speaker that fits in your pocket it does get pretty loud. There’s a reasonable amount of bass as well considering the IC-BTS04’s size but if you’re into bass heavy music it would be wiser to go for a larger speaker. Audio playback remained very crisp and clear until I set it to max volume, there’s just a hint of distortion at 100% volume.

Speakerphone – The speakerphone function works flawlessly, I was able to make and receive calls without any background noises on my end. Audio quality on the other end was as my brother puts it “couldn’t tell the difference from that and your phone’s speakerphone” – so I’m assuming that it was flawless on the other end as well.


iClever IC-BTS04 Battery Life

According to iClever, this speaker should last up to 10 hours depending on volume setting and connection type being used – I’m pleased to say that’s pretty much spot on to what I got during testing. I managed just over 9.5 hours, this was using the wireless connection only and as always I’m sure I could have squeezed a bit more out of that 1800mAh battery if I was using the wired option intermittently.

iClever IC-BTS04 Connectivity

Like most budget Bluetooth speakers around today, only two connection modes are supported. There’s a wired option using the included 3.5mm cable and there’s the Bluetooth streaming option, there’s no NFC support for this model.

Establishing a Bluetooth connection to this speaker takes no more than 10 seconds, switched it on and my Samsung Galaxy S6 was able to pick it up pretty much straight away. It’s got Bluetooth v4.0 which is well known for its power efficiency and connection reliability. Audio streaming was tested within the 10m range and there were no audio crackling or drop outs whatsoever.

AVRCP (Audio/Video Remote Control Profile) technology also allows you to use the speaker’s function buttons as a remote control for skipping songs and taking phone calls without going back to your mobile phone or tablet, a very useful feature especially if you plan to use this iClever speaker around water.

iClever IC-BTS04 Specs

Dimensions 162 x 64.2 x 28.3mm
Speaker 10W (2x5W)
Playback Time Up to 10 Hours
Battery Capacity 1800mAh
Battery Charge Time 3-4 Hours
Bluetooth Version 4.0
Call Handling Yes
Wireless Range 10m

iClever IC-BTS04 Verdict

A very well made budget Bluetooth speaker designed to take your music into the great outdoors. If you’re after a water resistant Bluetooth speaker that packs a punch on a budget, this iClever speaker is definitely worth another look.

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  • Design
  • Build Quality
  • Audio Quality
  • Battery Life
  • Price


A pocket size power house designed to go wherever you go, 10 hours battery life and a maximum 10W output makes this iClever IC-BTS04 Bluetooth speaker one of the best Bluetooth speakers under £25.


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