B:	it's because there's not a there's no insulation, insulation in those things.
b iː WORD_BOUNDARY ɪ t s WORD_BOUNDARY b ɪ k ʌ z WORD_BOUNDARY ð ɛ ɹ z WORD_BOUNDARY n ɑ t ə WORD_BOUNDARY ð ɛ ɹ z WORD_BOUNDARY n oʊ WORD_BOUNDARY ɪ n s ə l eɪ ʃ ə n WORD_BOUNDARY ɪ n s ə l eɪ ʃ ə n WORD_BOUNDARY ɪ n WORD_BOUNDARY ð oʊ z WORD_BOUNDARY θ ɪ ŋ z WORD_BOUNDARY