Gadget Go 4 Ultra Portable Speakers

• Ultra-portable GO 4 Pro Sound with punchier bass: Don't let its little size fool you. The Go 4 packs a serious musical punch. Your friends won't believe how much great Pro Sound comes out of such a small speaker.
• Up to 7 hours of playtime plus 2 hours with PLAYTIME BOOST: Don't sweat the small stuff, like charging your battery. Go 4 gives you up to 7 hours of playtime on a single charge. Tap Playtime Boost to add up to 2 more hours to your battery life.
• Waterproof and dust-proof: The Go 4's IP67 waterproof and dust-proof rating ensures this portable speaker can handle almost any environment, from a poolside party to a seaside picnic.
• Multi-speaker connection by Aura-cast: Want even bigger Pro Sound? Pair two Go 4s for stereo sound, or wirelessly connect multiple  Aura-cast-enabled speakers using Aura-cast for even bigger sound.Made in part with recycled materials: The Go 4 incorporates post-consumer recycled plastic and fabric for the speaker grille. It's also packaged in FSC-certified paper printed with soy ink.
• Ultra-portable GO 4 Pro Sound with punchier bass: Don't let its little size fool you. The Go 4 packs a serious musical punch. Your friends won't believe how much great Pro Sound comes out of such a small speaker.
• Up to 7 hours of playtime plus 2 hours with PLAYTIME BOOST: Don't sweat the small stuff, like charging your battery. Go 4 gives you up to 7 hours of playtime on a single charge. Tap Playtime Boost to add up to 2 more hours to your battery life.
• Waterproof and dustproof: The Go 4's IP67 waterproof and dustproof rating ensures this portable speaker can handle almost any environment, from a poolside party to a seaside picnic.
• Multi-speaker connection by Aura-cast: Want even bigger Pro Sound? Pair two Go 4s for stereo sound, or wirelessly connect multiple  Aura-cast-enabled speakers using Aura-cast for even bigger sound.Made in part with recycled materials: The Go 4 incorporates post-consumer recycled plastic and fabric for the speaker grille. It's also packaged in FSC-certified paper printed with soy ink.

It is particularly suitable as a mobile speaker for a bike bag or rucksack thanks to its unrestricted outdoor suitability with protection class IP67. With its housing protected on the sides by rubberized plastic and on the front and back by hard-wearing Mash fabric with the small carrying strap, it makes a robust impression. And a stylish one too, as the 7 new colors include a camouflage option in addition to purple, pastel pink, blue, white, and red.

The outstanding new feature in the specifications is the battery life, which is said to be 9 hours in Eco mode. A significant improvement on the 5 hours of its predecessor. However, the competition offers even more thanks to heavier batteries, especially as the power-saving mode called “Playtime Boost” radically reduces the bass response. However, charging then takes a full 3 hours, which should be borne in mind when operating away from any power source.

The manufacturer also promises improved bass down to 90 Hz with the fourth generation of the Go. That would be astonishing considering the tiny housing and the broadband chassis measuring just 40 millimeters in diameter. An oval passive diaphragm at the bottom helps to ensure that the latter can produce something like bass beats from just 4.2 watts of amplifier power.

Both chassis are located behind the central logo. At least in the high frequencies we expect a small directional effect, so that the Go 4 is best hung at ear level or placed on a table. Thanks to the rubber coating on the underside, it stands quite securely there, and of course you can also lay it on its back.

Operation and functions