I'm not into DAPs but for those keen on them this looks like an intersting if expensive high end option (699USD as sample, full price 829USD), the specs are quite impressive.
Main Features:- Android2.3 OS With Custom Audio Player Software
- Support up to 24Bit/192kHz Bit for Bit Decoding
- ES9018 32Bit DAC Chip
- Built-in +/-8.5V Headphone AMP
- 3.75" Capacitive Touch Screen
- Up to 24Bit/192 Optical/Mini Coaxial Output
- 3.5mm Headphone Output, 6.3mm Headphone Output, and Line Out
- 256-Steps Digital Volume Control
- 64G Onboard Flash
- Support up to 32G External MicroSD
- 3-Setting Gain Switch
- SRC Function
- Slow Roll-off/ Sharp Roll-off Digital Filter
- Support Wifi, Bluetooth
- Solid Case Made of Magnesium Alloy and Aluminum Alloy
- Audio Formats Supported: APE, FLAC, WAV, WMA, AAC, ALAC, OGG, MP3
- Come With Micro USB Cable, Coaxial Cable, and AC Adapter
- One Year Warranty and Ten Years Free Labour
Specification:Power Source:Built-in 2000mAh 8.4V Li-polymer Battery pack or external power supply
Frequency Response: 20Hz-20KHz +0.1/-0.25dB
Signal to Noise Ratio:-116dB
Crosstalk: 1KHz0dB > -100dB, 20KHz odB = -82dB
THD+N: 0.002%
IMD: 0.0034%
Gain and Output Power: 0dB=2V rms (125mW/32ohm)
+3dB = 2.8V rms (245mW/32ohm)
+8.5dB = 5.0V rms (83mW/300ohm)
Battery Life: 72Hours (stand-by) or 7Hours (play music)
Battery Charge Time: 4Hours
External Power supply: 12V DC
Recommended Headphone Impedance: 8~600Ω
Dimension: 2.83W x 4.65L x 0.93H (inch)
71.8W x 118L x 27.5H (mm)
Weight: 265g or 9.3oz
more info:
www.ibasso.com/en/products/show.asp?ID=78