| Main sound category: | Diphthongs |
| Source vowel: | SoundCategory object (180) |
| Target vowel: | SoundCategory object (167) |
| IPA symbol: | ei |
| IPA description: | close mid front unrounded to close front unrounded diphthong |
| UPSID symbol: | ei |
| UPSID description: | close mid front unrounded to close front unrounded diphthong |
| Occurs in | 9 languages |
| That is in | 1.83% of all languages |
| Occurs in: | Bengali_Bangladesh Cantonese Catalan (Central) Danish Hebrew Indonesian Italian Italian_UPSID Mandarin |