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| Manufacturer | Shenzhen City Microdynamic Digital Ltd. |
| Category | Video and audio appliances |
| Price | ￥80.0 |
| Brand | Coolie. |
| Patent type | Appearance Design Patent |
| Listing Time | 2019 |
| Origin | Shenzhen. |
| Source category | Order. |
| Connection | Bluetooth Connection |
| Interface Type | USB |
| Frequency range | 100HZ-20KHZ |
| Output Power | 3w |
| Noise ratio | ≥75dB |
| Power supply | Inline lithium batteries |
| Channels | Two. |
| Play Length | Eight hours. |
| Extended Storage | Not supported |
| Play Format | MP3, WMA, WAV, FLC, APE |
| Body material | Plastic |
| Support for APP | Yes |
| Track Adjustment | Wire Remote Control |
| Is there a radio function? | Yes |
| Box material | Silicon glue. |
| Add LOGO | Yeah. |
| Process | To customize |
| Do you support a surrogate? | Not supported |
| Best delivery time. | 1-3 days |
| Cargo Stream | Sunfeng. |
| Foreign trade | Yes |
| Power mode | USB |
| Patent number | CN 305492038S |
| Is there a patented source? | Yes. |
| Waterproof level | IPx 3 |
| Internal battery capacity | 300 m-500 m- |
| Battery capacity | 400 milligrams. |
| Bluetooth | 5.0 |
