Zealot S75 Portable Outdoor IPX6 Waterproof Bluetooth Speaker Parameters: 1. Bluetooth version: 5.2 2. Transmission distance: 10m 3. Battery capacity: 3000mAh 4. Music time: 4-5 hours 5. Charging time: about 3 hours 6. Charging interface: Type-C 7. Speaker: 57mm x 2 8. Signal to noise ratio: not less than 85dB 9. Distortion: less than 1% 10. Frequency response: 20Hz-20KHz 11. Size: 14.6x6.5x11.1cm 12. Function: Supports Bluetooth, TF card plug-in, TWS interconnection Features: 1. Adopt full-range loudspeaker design, powerful subwoofer and shocking bass 2. Compact in appearance, easy to carry 3. Support two wireless interconnected synchronous playback to achieve surround sound and enjoy shocking sound effects 4. Built-in noise-canceling microphone, high-definition hands-free calling, free your hands 5. Built-in 3000mAh battery capacity, long-lasting battery life, worry-free travel 6. IPX6 waterproof design, no fear of rain, you can sing freely