Heyiarbeit DIY Magnetic Speaker 4 Ohm 3W 40mm Dia Round Shape Replacement Speaker Stereo Woofer Loudspeaker for DIY Audio Speakers Interphone 4pcs June_2023_update Used to any part of

Used to any part of the body that needs cold/hot therapy

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so are much more hard wearing than plastic or aluminium

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Heyiarbeit DIY Magnetic Speaker 4 Ohm 3W 40mm Dia Round Shape Replacement Speaker Stereo Woofer Loudspeaker for DIY Audio Speakers Interphone 4pcs June_2023_update Used to any part ofHeyiarbeit DIY Magnetic Speaker 4 Ohm 3W 40mm Dia Round Shape Replacement Speaker Stereo Woofer Loudspeaker for DIY Audio Speakers Interphone 4pcs Product Features Parameters Rated Power : 3W ; Resistance : 4 Ohm; Diameter : 40mm 1. 57"; Hight: 18mm 0. 71"; Shape: Round Unique Design This kind of small 3W speaker assembly is unique in design, using high performance magnets and imported rubber coils, and adequate volume, it will be your best choice if