  |  |  |  | |
| Editiorial reviews | ||||
| User rating |
| Built-in microphone | yes | yes | yes | yes |
|---|---|---|---|---|
| Maximum recording time | 26.0 h | N/A | 17.5 h | 17.5 h |
| Audio formats supported | N/A |
|
|
|
| Interface | N/A | USB | USB | USB |
| Built-in speaker(s) | N/A | yes | yes | yes |
| Number of built-in speakers | N/A | 1 | 1 | 1 |
| Width | 1.18 in | 2.4 in | 2.4 in | 2.68 in |
|---|---|---|---|---|
| Depth | 0.63 in | 1.02 in | 1.02 in | 1.02 in |
| Height | 4.07 in | 5.55 in | 5.55 in | 6.22 in |
| Weight | 2.4 oz | 4.09 oz | 4.09 oz | 4.48 oz |
| Microphone in | yes | yes | yes | yes |
|---|---|---|---|---|
| Connection to PC | N/A | yes | N/A | N/A |
| USB connector type | N/A | Mini-USB B | Micro-USB B | Micro-USB B |
| DC-in jack | N/A | yes | N/A | N/A |
| Battery type | AAA | N/A | N/A | N/A |
|---|---|---|---|---|
| Battery capacity indicator | yes | N/A | N/A | N/A |
| Recording battery life | 30.0 h | N/A | N/A | N/A |
| Number of batteries supported | 2 | 2 | 2 | 2 |
| Battery technology | N/A | Alkaline | N/A | N/A |
| Compatible battery sizes | N/A | AA | AA | AA |
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