The best...electricity-free iPhone speakers

Mini Koo

Set an iPhone or iPod in the solid walnut cradle that craftsman Jim Simon created for Koostik, and the wood’s resonance gives the device’s volume a “subtle lift.”

$70, koostik.com

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Source: Details

Phonofone III

This gramophone-style iPhone dock “gets our vote” for best-value cordless speaker. The design really boosts a phone’s overall volume, particularly the bass.

$200, scienceandsons.com

Source: Unplggd.com

Analog Tele-Phonographer

Christopher Locke creates his cordless “steampunk-style” iPhone and iPad speakers from found objects. Their sound is

“never tinny.”

From $400, heartlessmachine.com

Source: Details

iSuppli Gramo iPhone Speaker by Ozaki

This dock, when plugged in, will charge an iPhone. But like the other speakers here, it needs no power at all to boost the volume.

$70, ozakiverse.com

Source: Modern Home + Living

MegaPhone

This Italian-made ceramic horn with walnut stand resembles “a minimalist sculpture.” Paired with the right recording, it sounds like a “days-gone-by” Victrola.

$580, enadnis.com

Source: LATimes.com