Fangrui Product Details 1. F9 Tws Mini Portable Bluetooth Speaker Support Tf Card 2. Material: Abs, Silicone 3. Function: Bluetooth, Call, Tf Card, Tws Couplet 4. Bluetooth Version: 5.0 5. Transmission Distance: 10m 6. Channel Mode: Mono and Single Diaphragm 7. Speaker Specifications: 52mm, 4 Ohms, 5w 8. Frequency Response: 120hz-15khz 9. Signal-to-noise Ratio: Greater Than 75db 10. Distortion: Less Than 11. Charging Parameters: Dc 5v0.5a 12. Rated Voltagecurrent: 5v0.5a 13. Output Power: 5w 14. Power Supply Mode: Built-in Lithium Battery 15. Battery Capacity: 1200mah Lithium Battery 16. Two Speakers Can Be Interconnected By Tws, And The Left And Right Channels Can Be Output Independently To Achieve Surround Sound 17. Ipx4 Waterproof, Safe And Secure 18. Large-diameter High-definition Speakers, Double-enhanced Bass Diaphragm, 360-degree Sound Effects 19. Dimensions: 8.3 X 8.3 X 9.9 Cm 20. Product Net Weight: 290 Grams Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.