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Batteries are not included because they are not needed. The Bone Horn Stand is an unpowered phonograph-inspired iPhone case and stand which amplifies your device’s sound up to 12 decibels, simply by channeling the audio through the horn. The silicon-based amp slips over your iPhone like any other case, but gives it an audio boost and a dash of old-timey ...
Read More »Gramophone iPhone Amplifier Case Also Functions as a Stand
