The Roberts Beacon 330 comes with dual bass radiators that should bring with it "rich, powerful and clear sound" according to Roberts. In reality, it's certainly clear but we're not convinced by the power. The volume requires turning up more so than with other speakers in this price range and, even then, the energy isn't quite as potent.

Still, looking so good and feeling like a quality daily speaker ensures that the Roberts Beacon 330 will still be appealing to many.To reset your speaker use a paper clip to push the reset switch through the pin hole located underneath the speaker. Battery Life / Charge Time If previously used and paired it will attempt to connect to the previously paired device – see ‘reconnecting bluetooth device’. If the audio from your connected device stops then the speaker will shut down automatically to save power. Your product or AC/DC adaptor should not be exposed to liquids, steam, sand, dripping or splashing and no objects filled with liquids, such as vases, shall be placed on the product or adaptor. Roberts says the material provides benefits to the sound for optimal acoustic transparency. At either end of the cloth are gold trims, with the logo at the bottom featured in a gleaming gold finish. Despite the use of plastic for the casing, it’s an eye-catching look.

The Beacon 330 pumps out a decent sound through its 45mm neodymium driver unit, but over the course of listening to it, it’s clear there’s something… missing. The battery in the speaker may not have sufficient capacity in all cases to fully charge the connected device. A DAB Bluetooth radio is essentially a digital radio with the capability of using a bluetooth connection to stream to other digital devices that have music subscription services on them. When you activate the bluetooth function on your DAB radio, you will be invited to pair with another nearby device – such as a smartphone. Do that, and you can then select the music you want to play from your smartphone, using the DAB Bluetooth radio like a set of speakers. The volume, EQ and power off functions may be controlled by either speaker and will operate on both. When charging is completed the LEDs will stop flashing. The speaker is ready for use away from the mains supply if needed.The sound will change as you step through the options. After a few seconds without button presses the speaker will store the new setting. When it comes to classical music, the Roberts Beacon 330 performs better, sounding suitably balanced in terms of mids and lows, but it certainly isn't the kind of speaker that's aimed at a party environment. Of all the sound profiles available, Normal and Classic are your best bets, with Classic adding a little more size and pushing out vocals more. Outdoor makes it sound bigger but also a little less defined, while Bass Boost makes the shallow bass slightly tighter but the vocals sound reined-in. They all sound fine, but neither mode grabs your attention.