Fangrui Product Details 1. Ws898 Live Wireless Bluetooth Microphone With Audio Function 2. Material: Abs, Electronic Components 3. Function: Bluetooth 5.0, Music Playback, Call, Built-in Fm Radio 4. Power Supply Voltage: 5v 5. Frequency Response: 100hz-10khz 6. Fm Radio: 88-108hz 7. Speaker: 4545 External Magnetic 8. Connection Method: Usbtfbluetooth Connectionaudio Cable Connection 9. Built-in Battery: 1800mah Lithium Battery 10. Battery Life: 3-6 Hours 11. One Key To Eliminate The Original Sound, Easy Operation, Adjust At Any Time 12. Anti-whistling, No Stuck, No Noise 13. Big Speakers, Low-frequency Diaphragm, Three-dimensional Stereo Sound 14. Using 3d Textured Metal Mesh Cover, High-density Sponge, Intelligent Noise Reduction And Noise Filtering 15. Dimensions: 5 X 20 Cm 16. Weight: 399 Grams 17. Packing List: 18. -microphone X 1 19. -charging Cable X 1 20. -audio Cable X 1 21. -instruction Manual X 1