Specs: Headphone amp: 5mW+5mW

Features:

• HD Digital amp
• VPT Acoustic Engine (Virtual Phone Technology; otherwise known as Virtual-Surround)
• 6-band EQ
• A-B repeat mode, handy for learning phrases
• Adjustable playback speed control, range: +100% -50% without pitch change
• No support for native MP3 playback
• NiMH battery
• Plays back Hi-MD (1GB) media and original MD media.
• Backlit, jog-dial equipped remote.
• Multi-voltage (100-240VAC) Recharging stand.

links:

• Sony press release
• AV-Watch page

  Reviews:

  Battery life SP/LP2/LP4 on reformatted 300MB std-MD medium	Play	Recharge
  NiMH NH-14WM	26.5/32/35 hr	full: 3.5 hr
  AA	36/44.5/48 hr
  Both	66.5/79.5/87 hr
  Battery life PCM/Hi-SP/Hi-LP on reformatted 300MB std-MD medium	Play	Recharge
  NiMH NH-14WM	11/23/32.5 hr
  AA	14/30.5/44.5 hr
  Both	26.5/58.5/79.5 hr
  Battery life PCM/Hi-SP/Hi-LP on 1GB Hi-MD medium	Play	Recharge
  NiMH NH-14WM	15/25.5/32.5 hr
  AA	17.5/30.5/43 hr
  Both	37.5/64/82 hr