The FB09 Free does not have internal memory. Insert a (10-128GB). Format it directly in the camera menu before first use.
| Feature | Detail | |---------|--------| | Bluetooth Version | 5.0 / 5.1 (varies by batch) | | Driver | 10mm dynamic coil | | Impedance | 32Ω | | Earbud Battery | 30–40 mAh each | | Case Battery | 200–300 mAh | | Charging Time | ~1.5 hours | | Water Resistance | IPX4 (sweat / light rain resistant) | milky cat fb09 free