Sony MZ-E40 Personal MiniDisc Player (MD)

Features: ATRAC 3.5 (CXD2536AR), “Vertical” design, large LCD readout, 10 second buffer memory. Provides 4 hours playback on two AA batteries. Unit will accept the Sony Ni-MH battery-pack model BP-DM20 which charges internally in about 3 hours using the AC adapter and provides 3 hours [Sony] to 4 hours [user report] continuous playback. Unit not available in Japan.

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Vertical design with large LCD readout
10 second buffer memory
4 hours playback on two AA batteries