DoRealMe F0 TWS Mini Graffiti Bluetooth Speaker Support FM TF Card Features: 1. Appearance graffiti pattern or pure color simple style, surface matte treatment, comfortable hand feeling 2. Standard lanyard, easy to carry; 2. Bluetooth 5.0 high-definition decoding, fast and stable, transmission distance up to 10M or more 3. Multi-device interconnection technology can form left and right stereo channels, with louder volume, wider sound field and better sound quality 4. Active 40mm sound unit and passive woofer speaker configuration, clear vocals, high frequency penetrating power, low frequency strong and powerful 5. Large capacity battery can play continuously for 6-18 hours 6. High-definition Bluetooth hands-free calling 7. Automatic FM radio, convenient and fast, listen to the broadcast information at any time Product parameters: 1. Material: ABS, electronic components 2. Interface type: USB 3. Frequency response range: 60Hz-16KHz 4. Output power: 5W 5. Signal-to-noise ratio: greater than or equal to 75dB 6. Power supply mode: built-in lithium battery 7. Battery capacity: 500mAh lithium battery 8. Play time: 2-10 hours 9. Channel: Mono 10. Expansion storage: 16GB 11. Bluetooth protocol: 5.0 12. Effective distance: 10 meters 13. Number of speakers: 1 unit 14. Operation mode: button 15. Play format: MP3, WAV 16. Support format: TF card 17. Is there a radio function: yes 18. Dimensions: 12 x 3 x 6 cm 19. Weight: 150 grams