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| Status | In Stock |
| Condition | new |
| Category | Bluetooth Speakers |
| Brand | ACEFAST |
| Product Name | ACEFAST K4Go Portable Wireless Speaker |
| Bluetooth Version | v5.4 |
| Transmission Distance | ≥10m |
| Frequency Response | 60Hz–20000Hz |
| Battery Capacity | 900mAh / 3.7V |
| Input | DC 5V⎓0.86A (USB-C) |
| Charging Time | 1.5 hours |
| Working Time | 8 hours (music mode, 50% volume) |
| Speaker Units | 45×45mm full-range + 35×60mm passive diaphragm |
| Power Output | Rated 4W, Peak 5W |
| Size | 100×40×78mm |
| Weight | 200g |
| Waterproof Rating | IPX7 |
| Features | TWS support, portable strap, lightweight design |
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