3.33 in 0.87 in  | 1.71 in 3.45 in  | |
| Available colors | ||
| User rating |
 Sony Walkman NWZ-B183 4GB |  Sony Walkman NWZ-E384 8GB | |
|---|---|---|
| Weather proof (moisture/dust) | no | no |
| Sony Walkman NWZ-B183 4GB | Sony Walkman NWZ-E384 8GB | |
|---|---|---|
| Colour of product |
|
|
| Sony Walkman NWZ-B183 4GB | Sony Walkman NWZ-E384 8GB | |
|---|---|---|
| Height | 0.87 in | 3.45 in |
| Depth | 0.53 in | 0.39 in |
| Width | 3.33 in | 1.71 in |
| Weight | 1.06 oz | 1.83 oz |
| Sony Walkman NWZ-B183 4GB | Sony Walkman NWZ-E384 8GB | |
|---|---|---|
| Display | yes | yes |
| Screen size | 0.9 in | 1.77 in |
| Technology | LCD | LCD |
| Type of display | Monochrome | Colour |
| Touchscreen | no | no |
| Sony Walkman NWZ-B183 4GB | Sony Walkman NWZ-E384 8GB | |
|---|---|---|
| Memory card reader | no | no |
| Memory capacity | 4.0 GB | 8.0 GB |
| Sony Walkman NWZ-B183 4GB | Sony Walkman NWZ-E384 8GB | |
|---|---|---|
| Recording voice | no | no |
| Supported audio files |
|
|
| Sony Walkman NWZ-B183 4GB | Sony Walkman NWZ-E384 8GB | |
|---|---|---|
| Wi-Fi | no | no |
| Bluetooth | no | no |
| USB | yes | yes |
| Analogue 3.5mm input | 0 | 0 |
| Video output | No | No |
| Headphone output | 1 | 1 |
| Digital optical output (S/PDIF) | no | no |
| USB version | 2.0 | 2.0 |
| Sony Walkman NWZ-B183 4GB | Sony Walkman NWZ-E384 8GB | |
|---|---|---|
| Battery type | Li-Ion | Li-Ion |
| Battery life | 20.0 h | 30.0 h |
| Rechargeable battery (enclosed/integrate) | yes | yes |
| Pros | ||
|---|---|---|
| Cons |
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