DBEST London Duo Bluetooth Rechargeable Mini-Speaker Set Review

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The other day we looked at one of two DBest speaker sets I have been using for the past week and a half. Here’s what DBest has to say about their products:

The most important thing in music are not the lyrics, but the way of receiving. The way music is transferred determines how much we like our music. To be short: the better the quality of our speakers, the better we can enjoy music! DBest speakers provide premium sound quality that is considered the finest in the world. This way they can give you maximum pleasure listening to your music.

Quality doesn’t deny itself. Play music through a laptop, iPod, iPhone, iPad, MP3 player or any other device and listen to the best sound quality in the smallest housing. Experience how easy it is to transform your living room into a concert room or just create a party with friends on the beach with the portable mini-speakers from DBest.

I reviewed the PS4001BT Solo Bluetooth Rechargeable Mini-Speaker here. Today we are going to look at the company’s 4003BT Duo Bluetooth Rechargeable Mini-Speaker Set. Like their singular cousin, the 4003BT are small. They are round. And they pack a punch. So let’s take a look.

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From DBest:

The PS4003BT is a set of two premium quality portable speakers that connect to your audio source through Bluetooth. Wireless music transmission allows you to roam free with your phone or iPod touch while enjoying exceptionally clear sound at home or office. The combination of the two units facilitates stereo playback while you can also connect non-Bluetooth devices through the included line-in cable. Continuous playback time using built-in rechargeable batteries is up to 20 hours in wireless mode and up to 40 hours in wired mode.

Highlights: Stereo Bluetooth music playback, Wireless music streaming, Engineered for exceptional clarity of sound, Powerful built-in amplifier for a surprisingly loud volume, High capacity battery for up to 20 hrs wireless or up to 40 hrs wired playback, Line input for audio sources without Bluetooth connectivity, Compatible with all devices featuring 2.1+EDR Bluetooth or 3.5mm audio jack, Compatible with all standard USB chargers (PC, Car, Mains)


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If you want the technical specs you are in luck. Here’s what they have going for them.

Bluetooth Protocol 2.1+EDR

Transmission Distance 10-16 meters

AMP. Freq Range 180Hz-20KHz

Signal/Noise Ratio >80dB

Driver 4ohm, Ø40mm

Rating Power 2W (with amplifier)

Rechargeable Battery 600mAH Lithium Polymer

Battery Voltage 3.7V

Full Charging Time 3~4hrs

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While separate (sort of, more on that in a bit) the speakers are a pair that work together. As such, the on/off switch is only on one of the two. And, unlike the single model we covered, this unit has a volume control onboard so you don’t have to rely solely on the device supplying the music to change the volume.

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The two speakers are linked to one another using the included 3.5mm cable. I was able to take the speakers and put them to the left and the right of my 27″ iMac and enjoyed listening to them while working on the review.

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Once turned on, one of the speakers has a glowing blue light beneath it. It does throw off the symmetry of the speakers but… so be it.

The speakers sound good and get rather loud. AND, at all but the highest volume they don’t seem to distort all that much. Had I not already been using the single version of the speaker I probably would have been more surprised by the volume and sound but having done the other review this just seemed to up the game a bit. No, they won’t blow you away and the certainly can’t compete with my Sonos system or even my JawBone JamBox. At the same time though, at under $70 they aren’t intended to compete with those systems. They do get louder than their mono cousin so, if you are looking for some inexpensive, unusual speakers, I would recommend the pair over the single one.

Oh, and there’s another trick these speakers have up their sleeves.

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Magnets in the base of each speaker lock together  for easy transportation.

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The magnets are strong enough to hold them together and swing them from the included 3.5mm cable. Seriously, how cool is this?

If you want a pair of speakers for under $70 that sound good, give impressive run-time and don’t look like everything else on the market they are definitely worth a look. You can find more information here on the DBest website and order them here on Amazon.

MSRP: $69.99

What I Like: Cool looking; Sound good and get quite loud; Neat magnets hold them together when not in use

What Needs Improvement: Sound is good… not great

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About the Author

Dan Cohen
Having a father who was heavily involved in early laser and fiber-optical research, Dan grew up surrounded by technology and gadgets. Dan’s father brought home one of the very first video games when he was young and Dan remembers seeing a “pre-release” touchtone phone. (When he asked his father what the “#” and “*” buttons were his dad said, “Some day, far in the future, we’ll have some use for them.”) Technology seemed to be in Dan’s blood but at some point he took a different path and ended up in the clergy. His passion for technology and gadgets never left him. Dan is married to Raina Goldberg who is also an avid user of Apple products. They live in New Jersey with their golden doodle Nava.