Juz 30 or commonly referred as Juz Amma is the last juz in the Holy Quran. There are 37 surahs in juz 30, where the surah from are 78th surah (An-Naba') to 114th surah (An-Nas), consisting of letters sent down in Mecca or Makkiyah and letters sent down in Medina or Madaniyah.
But most of which are contained in this juz are Makkiyah surahs and only a few are Madaniyah surahs, such as Al-Bayyinah, Az-Zalzalah, and An-Nasr.
Now you can listen, save, and download the audio of Juz 30 or Juz Amma from Abu Usamah. Here the list of Surah in Juz 30:

78. An-Naba’ (40)
79. An-Nazi’at (46)
80. ‘Abasa (42)
81. At-Takwir (29)
82. Al-Infithar (19)
83. Al-Muthaffifin (36)
84. Al-Insyiqaq (25)
85. Al-Buruj (22)
86. Ath-Thariq (17)
87. Al-A’la (19)
88. Al-Ghasyiyah (26)
89. Al-Fajr (30)
90. Al-Balad (20)
91. Asy-Syams (15)
92. Al-Lail (21)
93. Ad-Dhuha (11)
94. Al-Insyirah (8)
95. At-Tin (8)
96. Al-‘Alaq (19)
97. Al-Qadr (5)
98. Al-Bayyinah (8)
99. Al-Zalzalah (8)
100. Al-‘Adiyat (11)
101. Al-Qari’ah (11)
102. At-Takatsur (8)
103. Al-Ashr (3)
104. Al-Humazah (9)
105. Al-Fil (5)
106. Quraisy (4)
107. Al-Ma’un (7)
108. Al-Kautsar (3)
109. Al-Kafirun (6)
110. An-Nashr (3)
111. Al-Lahab (5)
112. Al-Ikhlash (4)
113. Al-Falaq (5)
114. An-Nas (6)