Another feature, unique to frogs and salamanders, is the columella-operculum complex adjoining the auditory capsule which is involved in the transmission of both airborne and seismic signals.
ɐnˈʌðɚ fˈiːtʃɚ, juːnˈiːk tə fɹˈɑːɡz ænd sˈælɐmˌændɚz, ɪz ðə kˌɑːluːmˈɛləˈɑːpɚkjˌʊləm kˈɑːmplɛks ɐdʒˈɔɪnɪŋ ðɪ ˈɔːdɪtˌoːɹi kˈæpsjuːl wˌɪtʃ ɪz ɪnvˈɑːlvd ɪnðə tɹænsmˈɪʃən ʌv bˈoʊθ ˈɛɹboːɹn ænd sˈaɪzmɪk sˈɪɡnəlz.