The Xtreme 3 improves charge time to just 2.5 hours, down from 3.5 hours for the Xtreme 2 (both have 15 hours of battery life)

The speaker has Bluetooth or a wired USB connection and there are guitar and mic inputs. It's also worth noting that the speaker is IPX4 splash-proof and you can wirelessly link two PartyBox 110 speakers together for stereo sound. I didn't test the stereo mode, but I was impressed with the sound of a single PartyBox 110 -- this bluetooth device puts out lots of well-defined bass with good overall clarity in the highs and mids -- and I suspect that pairing two of these together would be pretty awesome. Like the UE Hyperboom (see below), this has a USB-out port that allows you to charge external devices like your phone, and there's also an analog audio input if you want to go wired and connect a device without using Bluetooth connectivity (the Hyperboom adds an optical digital input).Though it costs more than Tribit's Stormbox Blast, the 11.7-pound Rave Party 2 is a more attractively designed speaker and arguably sounds slightly better. Its two 4-inch woofers and two 2-inch tweeters deliver aggressive, punchy sound with enough volume to fill larger rooms (the Tribit's bass goes a little deeper, but I was pretty satisfied with this speaker's low-end capabilities). For even bigger sound, you can wirelessly link multiple Rave Party 2 and other Soundcore speakers that support the company's PartyCast 2.0 feature. Most of its controls are on its front size: EQ, volume, mode switching, radio presets, balance, and even a switch to control its lights. There are two screens: a wide radio dial, and output level that shows your music’s volume. The aux input, mic inputs, and aux out are on its right side.

While it doesn’t offer a rechargeable battery, this boombox only requires 2 AA batteries to operate, making it cheap to operate compared to other boomboxes that require 8-10 D batteries.The first thing that stands out is its look. At 23.7 inches this is a boombox that’s been super-sized. But GPO took a cue from Victrola and used that extra space wisely. This boombox has a pair of large, 40 watt speakers, and is fully loaded to handle every way you might want to listen to music. One of the most important features, boomboxes are designed to be portable. Unlike the monstrous-sized boomboxes of the 1980s, modern boomboxes come in a compact size and won’t weigh more than a few pounds and shouldn’t take up too much space. Of course, some of the vintage-styled boomboxes will be larger so they can match the visual aesthetic of the era. Battery Life GPO Brooklyn - Boombox Stereo Bringing the '80s boombox bang up to date, the GPO Brooklyn gives you sound and style in equal measure. Fully portable with two 40 watt speakers, control the Volume, Balance, Bass and Treble, stream via Bluetooth, play Cassettes, CDs or use the DAB and DAB+ radio. FEATURES

The Hyperboom also is the better-sounding portable Bluetooth speaker overall. It has a wider soundstage with slightly more bass and clarity. It also sounds a little more natural.The Brooklyn boombox is designed to give you a good old taste of the ‘80s, but with some modern twists as well. Of course, no boombox could live with itself if it didn’t play cassettes or the radio, so this one does both with style. But, it also plays modern media like CDs, MP3s, and any music you want to stream via Bluetooth. It also has USB, RCA, and Aux inputs, letting you play music from all your different devices. If you want to wax nostalgic about the first wave of the cassette, we highly recommend Rob Sheffield’s Love Is A Mixtape). What You Need to Know Before Buying a Retro Boombox Finally, don’t forget about the style and form factor of the boombox. Most modern boomboxes feature a small and curved style and form factor and come in a wide range of colors. Modern boomboxes offer a wide range of ways to play music. While most will have a CD player, you’ll also find aux inputs so you can attach your smartphone or laptop. Many boomboxes offer Bluetooth connectivity that will make it even easier to connect your phone.