| Brand | Astell & Kern |
| Model | AK70 |
| Body | Aluminum |
| Color | Misty Mint |
| Dimension | Width 60.3 mm X Height 96.8 mm X Depth 13 mm |
| Weight | 4.66 oz (132 g) |
| Display | 3.3" WVGA 480 x 800 TFT LCD |
| Native DSD | Playback up to DSD128 (5.6448mHz) |
| DAC | Cirrus Logic CS4398 x 1 Single DAC |
| Decoding | Support up to 24bit / 192kHz Bit to Bit Decoding |
| Supported Audio Formats | WAV, FLAC, WMA, MP3, OGG, APE(Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF |
| Balanced Output | 2.3Vrms (Condition No Load) |
| Outputs | PHONES (3.5mm) / Balanced Out (2.5mm, only 4-pole supported) |
| Other Outputs | Micro USB & USB DAC |
| Input | Support USB Micro-B for charging and data transfer |
| Input Connection Mode | MTP (Media Device) |
| Amplifier | Built-in amp with normal or high gain switch |
| Battery | 2,200mAh 3.7V Li-Polymer Battery (last 4-6 hours) |
| Internal Memory | 64GB internal flash memory |
| External Memory | MicroSD, support up to 256GB |
| WIFI | 802.11 b/g/n (2.4GHz) |
| Bluetooth | V4.0 (A2DP, AVRCP, aptX™ HD) |
| Feature Enhancements | Firmware upgrades supported (OTA) |