Havit M8 Mini TWS Wireless Bluetooth Speaker Home Subwoofer Features: 1. Built-in 52mm large unit speaker, wide sound field, balanced three-frequency hearing, releasing a large sound field. 2. TWS wireless series connection, left and right independent channels, stereo shocking sound effect. 3. Built-in radio microphone, one-click to open high-definition hands-free call, callconference can also free your hands. 4. Bluetooth 5.3 chip, transmission distance up to 10m, low power consumption and stable and smooth signal. 5. Touch buttons, simple and clear Product parameters: 1. Material: ABS+AS+silicone 2. Bluetooth version: 5.3 3. Bluetooth transmission distance: 10 meters 4. Output power: 3W 5. Speaker specifications: 52mm 6. Frequency response: 50-20 KHz 7. Sensitivity: 81+3dB 8. File format: support MP3WMAWAV 9. Charging voltage: DC5V 10. Battery capacity: 1200mAh 11. Battery life: about 8 hours 12. Product size: about 66.6 x 79.3 x 79.3mm 13. Weight: about 225g 14. This product is manually measured, and there may be errors of 0.1-0.2 mm and 0.1-0.2 grams in length and weight; there may be a slight color difference due to display and light problems. Please refer to the actual product! 15. Note: The shipment only includes the speaker, not other items in the picture!