10 Electricity-Free iPhone Speakers : TreeHugger.
What’s old is new again…this is how they got audio amplification in the days of the Victrola and early radios. Don’t expect rich, luscious sound from these.
10 Electricity-Free iPhone Speakers : TreeHugger.
What’s old is new again…this is how they got audio amplification in the days of the Victrola and early radios. Don’t expect rich, luscious sound from these.