6.89 in 2.68 in  | 7.6 in 2.83 in  | |
| Available colors | ||
| Editiorial reviews | ||
| User rating |
 JBL Flip 4 |  Sony SRS-XB21 | |
|---|---|---|
| Channels | 2.0 | 2.0 |
| Low frequency | 70.0 Hz | 20.0 Hz |
| High frequency | 20.0 kHz | 20.0 kHz |
| Number of drivers | 2 | 2 |
| JBL Flip 4 | Sony SRS-XB21 | |
|---|---|---|
| Colour of product |
|
|
| Built-in display | yes | no |
| JBL Flip 4 | Sony SRS-XB21 | |
|---|---|---|
| Height | 2.68 in | 2.83 in |
| Width | 6.89 in | 7.6 in |
| Depth | 2.76 in | 2.56 in |
| Weight | 17.99 oz | 18.7 oz |
| JBL Flip 4 | Sony SRS-XB21 | |
|---|---|---|
| USB | yes | yes |
| Type of USB connector | Micro-USB | Micro-USB |
| AUX in | yes | yes |
| Bluetooth | yes | yes |
| Bluetooth codec |
|
|
| Bluetooth profile |
|
|
| Bluetooth version | 4.2 | 4.2 |
| Analogue 3.5mm input (Aux) | 1 | 1 |
| Wireless network (Wi-Fi) | no | no |
| NFC | no | yes |
| JBL Flip 4 | Sony SRS-XB21 | |
|---|---|---|
| Docking station for mobile/Tablet | no | yes |
| USB input port | yes | yes |
| IP code (level of dust/water resistance) | IPX7 | IP67 |
| JBL Flip 4 | Sony SRS-XB21 | |
|---|---|---|
| Battery operated | yes | yes |
| Electric (not USB) | no | yes |
| Battery type | Li-polymer | Li-Ion |
| Playback time | 12.0 h | 12.0 h |
| Battery life (max) | 12.0 h | 12.0 h |
| Pros | ||
|---|---|---|
| Cons |
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